diff --git a/MediaBrowser.Common.Implementations/HttpClientManager/HttpClientManager.cs b/MediaBrowser.Common.Implementations/HttpClientManager/HttpClientManager.cs
index f9363e0d9..d2af8fa20 100644
--- a/MediaBrowser.Common.Implementations/HttpClientManager/HttpClientManager.cs
+++ b/MediaBrowser.Common.Implementations/HttpClientManager/HttpClientManager.cs
@@ -78,7 +78,7 @@ namespace MediaBrowser.Common.Implementations.HttpClientManager
             {
                 var handler = new WebRequestHandler
                 {
-                    AutomaticDecompression = DecompressionMethods.Deflate,
+                    //AutomaticDecompression = DecompressionMethods.Deflate,
                     CachePolicy = new RequestCachePolicy(RequestCacheLevel.Revalidate)
                 };
 
diff --git a/MediaBrowser.Common/Kernel/ResourcePool.cs b/MediaBrowser.Common/Kernel/ResourcePool.cs
new file mode 100644
index 000000000..7a74c60a7
--- /dev/null
+++ b/MediaBrowser.Common/Kernel/ResourcePool.cs
@@ -0,0 +1,84 @@
+using System;
+using System.Threading;
+
+namespace MediaBrowser.Common.Kernel
+{
+    /// <summary>
+    /// This is just a collection of semaphores to control the number of concurrent executions of various resources
+    /// </summary>
+    public class ResourcePool : IDisposable
+    {
+        /// <summary>
+        /// You tube
+        /// </summary>
+        public readonly SemaphoreSlim YouTube = new SemaphoreSlim(5, 5);
+
+        /// <summary>
+        /// The trakt
+        /// </summary>
+        public readonly SemaphoreSlim Trakt = new SemaphoreSlim(5, 5);
+
+        /// <summary>
+        /// The tv db
+        /// </summary>
+        public readonly SemaphoreSlim TvDb = new SemaphoreSlim(5, 5);
+
+        /// <summary>
+        /// The movie db
+        /// </summary>
+        public readonly SemaphoreSlim MovieDb = new SemaphoreSlim(5, 5);
+
+        /// <summary>
+        /// The fan art
+        /// </summary>
+        public readonly SemaphoreSlim FanArt = new SemaphoreSlim(5, 5);
+
+        /// <summary>
+        /// The mb
+        /// </summary>
+        public readonly SemaphoreSlim Mb = new SemaphoreSlim(5, 5);
+
+        /// <summary>
+        /// The mb
+        /// </summary>
+        public readonly SemaphoreSlim Lastfm = new SemaphoreSlim(5, 5);
+
+        /// <summary>
+        /// Apple doesn't seem to like too many simulataneous requests.
+        /// </summary>
+        public readonly SemaphoreSlim AppleTrailerVideos = new SemaphoreSlim(1, 1);
+
+        /// <summary>
+        /// The apple trailer images
+        /// </summary>
+        public readonly SemaphoreSlim AppleTrailerImages = new SemaphoreSlim(1, 1);
+        
+        /// <summary>
+        /// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
+        /// </summary>
+        public void Dispose()
+        {
+            Dispose(true);
+            GC.SuppressFinalize(this);
+        }
+
+        /// <summary>
+        /// Releases unmanaged and - optionally - managed resources.
+        /// </summary>
+        /// <param name="dispose"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
+        protected virtual void Dispose(bool dispose)
+        {
+            if (dispose)
+            {
+                YouTube.Dispose();
+                Trakt.Dispose();
+                TvDb.Dispose();
+                MovieDb.Dispose();
+                FanArt.Dispose();
+                Mb.Dispose();
+                AppleTrailerVideos.Dispose();
+                AppleTrailerImages.Dispose();
+            }
+        }
+    }
+}
diff --git a/MediaBrowser.Controller/MediaBrowser.Controller.csproj b/MediaBrowser.Controller/MediaBrowser.Controller.csproj
index f4be79afb..68936bb1a 100644
--- a/MediaBrowser.Controller/MediaBrowser.Controller.csproj
+++ b/MediaBrowser.Controller/MediaBrowser.Controller.csproj
@@ -108,6 +108,8 @@
     <Compile Include="IServerApplicationPaths.cs" />
     <Compile Include="Library\ChildrenChangedEventArgs.cs" />
     <Compile Include="Library\DtoBuilder.cs" />
+    <Compile Include="Providers\Music\LastfmArtistProvider.cs" />
+    <Compile Include="Providers\Music\LastfmBaseArtistProvider.cs" />
     <Compile Include="Resolvers\BaseItemResolver.cs" />
     <Compile Include="Resolvers\BaseVideoResolver.cs" />
     <Compile Include="Resolvers\IItemResolver.cs" />
diff --git a/MediaBrowser.Controller/Providers/Music/LastfmArtistProvider.cs b/MediaBrowser.Controller/Providers/Music/LastfmArtistProvider.cs
new file mode 100644
index 000000000..5203b6f06
--- /dev/null
+++ b/MediaBrowser.Controller/Providers/Music/LastfmArtistProvider.cs
@@ -0,0 +1,84 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using MediaBrowser.Common.Net;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Entities.Audio;
+using MediaBrowser.Model.Logging;
+using MediaBrowser.Model.Net;
+using MediaBrowser.Model.Serialization;
+
+namespace MediaBrowser.Controller.Providers.Music
+{
+    public class LastfmArtistProvider : LastfmBaseArtistProvider
+    {
+        public LastfmArtistProvider(IJsonSerializer jsonSerializer, IHttpClient httpClient, ILogManager logManager) 
+            : base(jsonSerializer, httpClient, logManager)
+        {
+        }
+
+        protected override async Task<string> FindId(Entities.BaseItem item, System.Threading.CancellationToken cancellationToken)
+        {
+            //Execute the Artist search against our name and assume first one is the one we want
+            var url = RootUrl + string.Format("method=artist.search&artist={0}&api_key={1}&format=json", UrlEncode(item.Name), ApiKey);
+
+            LastfmArtistSearchResults searchResult = null;
+
+            try
+            {
+                using (var json = await HttpClient.Get(url, Kernel.Instance.ResourcePools.MovieDb, cancellationToken).ConfigureAwait(false))
+                {
+                    searchResult = JsonSerializer.DeserializeFromStream<LastfmArtistSearchResults>(json);
+                }
+            }
+            catch (HttpException e)
+            {
+                if (e.StatusCode == HttpStatusCode.NotFound)
+                {
+                    return null;
+                }
+                throw;
+            }
+
+            if (searchResult != null && searchResult.results != null && searchResult.results.artistmatches != null && searchResult.results.artistmatches.artist.Any())
+            {
+                return searchResult.results.artistmatches.artist.First().mbid;
+            }
+
+            return null;
+        }
+
+        protected override async Task FetchLastfmData(BaseItem item, string id, CancellationToken cancellationToken)
+        {
+            // Get artist info with provided id
+            var url = RootUrl + string.Format("method=artist.getInfo&mbid={0}&api_key={1}&format=json", UrlEncode(id), ApiKey);
+
+            LastfmGetArtistResult result = null;
+
+            try
+            {
+                using (var json = await HttpClient.Get(url, Kernel.Instance.ResourcePools.Lastfm, cancellationToken).ConfigureAwait(false))
+                {
+                    result = JsonSerializer.DeserializeFromStream<LastfmGetArtistResult>(json);
+                }
+            }
+            catch (HttpException e)
+            {
+                if (e.StatusCode == HttpStatusCode.NotFound)
+                {
+                    throw new LastfmProviderException(string.Format("Unable to retrieve artist info for {0} with id {0}", item.Name, id));
+                }
+                throw;
+            }
+
+            if (result != null && result.artist != null)
+            {
+                ProcessArtistData(item as MusicArtist, result.artist);
+            }
+        }
+    }
+}
diff --git a/MediaBrowser.Controller/Providers/Music/LastfmBaseArtistProvider.cs b/MediaBrowser.Controller/Providers/Music/LastfmBaseArtistProvider.cs
new file mode 100644
index 000000000..85f141a56
--- /dev/null
+++ b/MediaBrowser.Controller/Providers/Music/LastfmBaseArtistProvider.cs
@@ -0,0 +1,107 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+using System.Text;
+using System.Threading.Tasks;
+using MediaBrowser.Common.Net;
+using MediaBrowser.Controller.Entities.Audio;
+using MediaBrowser.Model.Logging;
+using MediaBrowser.Model.Net;
+using MediaBrowser.Model.Serialization;
+
+namespace MediaBrowser.Controller.Providers.Music
+{
+    public abstract class LastfmBaseArtistProvider : LastfmBaseProvider
+    {
+        protected LastfmBaseArtistProvider(IJsonSerializer jsonSerializer, IHttpClient httpClient, ILogManager logManager)
+            : base(jsonSerializer, httpClient, logManager)
+        {
+            LocalMetaFileName = "MBArtist.json";
+        }
+
+        public override bool Supports(Entities.BaseItem item)
+        {
+            return item is MusicArtist;
+        }
+
+        protected void ProcessArtistData(MusicArtist artist, LastfmArtist data)
+        {
+            artist.Overview = data.bio.summary;
+            foreach (var tag in data.tags.tag)
+            {
+                artist.AddGenre(tag.name);
+            }
+        }
+    }
+
+
+    #region Result Objects
+
+    public class LastfmStats
+    {
+        public string listeners { get; set; }
+        public string playcount { get; set; }
+    }
+
+    public class LastfmTag
+    {
+        public string name { get; set; }
+        public string url { get; set; }
+    }
+
+    public class LastfmTags
+    {
+        public List<LastfmTag> tag  { get; set; }
+    }
+
+    public class LastfmFormationInfo
+    {
+        public string yearfrom { get; set; }
+        public string yearto { get; set; }
+    }
+
+    public class LastFmBio
+    {
+        public string published { get; set; }
+        public string summary { get; set; }
+        public string content { get; set; }
+        public string placeformed { get; set; }
+        public string yearformed { get; set; }
+        public List<LastfmFormationInfo> formationlist { get; set; }
+    }
+
+    public class LastfmArtist
+    {
+        public string name { get; set; }
+        public string mbid { get; set; }
+        public string url { get; set; }
+        public string streamable { get; set; }
+        public string ontour { get; set; }
+        public LastfmStats stats { get; set; }
+        public List<LastfmArtist> similar { get; set; }
+        public LastfmTags tags { get; set; }
+        public LastFmBio bio { get; set; }
+    }
+
+    public class LastfmGetArtistResult
+    {
+        public LastfmArtist artist { get; set; }
+    }
+
+    public class Artistmatches
+    {
+        public List<LastfmArtist> artist { get; set; }
+    }
+
+    public class LastfmArtistSearchResult
+    {
+        public Artistmatches artistmatches { get; set; }
+    }
+
+    public class LastfmArtistSearchResults
+    {
+        public LastfmArtistSearchResult results { get; set; }
+    }
+    #endregion
+}
diff --git a/MediaBrowser.Controller/Providers/Music/LastfmBaseProvider.cs b/MediaBrowser.Controller/Providers/Music/LastfmBaseProvider.cs
index c73321e55..a77cc4846 100644
--- a/MediaBrowser.Controller/Providers/Music/LastfmBaseProvider.cs
+++ b/MediaBrowser.Controller/Providers/Music/LastfmBaseProvider.cs
@@ -96,7 +96,7 @@ namespace MediaBrowser.Controller.Providers.Music
             }
         }
 
-        protected const string RootUrl = @"http://ws.audioscrobbler.com/2.0/";
+        protected const string RootUrl = @"http://ws.audioscrobbler.com/2.0/?";
         protected static string ApiKey = "7b76553c3eb1d341d642755aecc40a33";
 
         protected override bool NeedsRefreshInternal(BaseItem item, BaseProviderInfo providerInfo)
@@ -188,7 +188,27 @@ namespace MediaBrowser.Controller.Providers.Music
         /// <param name="item">The item.</param>
         /// <param name="cancellationToken"></param>
         /// <returns>Task.</returns>
-        protected abstract Task FetchData(BaseItem item, CancellationToken cancellationToken);
+        protected async Task FetchData(BaseItem item, CancellationToken cancellationToken)
+        {
+            var id = item.GetProviderId(MetadataProviders.Musicbrainz) ?? await FindId(item, cancellationToken).ConfigureAwait(false);
+            if (id != null)
+            {
+                Logger.Debug("LastfmProvider - getting info with id: " + id);
+
+                cancellationToken.ThrowIfCancellationRequested();
+
+                await FetchLastfmData(item, id, cancellationToken).ConfigureAwait(false);
+            }
+            else
+            {
+                Logger.Info("LastfmProvider could not find " + item.Name + ". Check name on Last.fm.");
+            }
+            
+        }
+
+        protected abstract Task<string> FindId(BaseItem item, CancellationToken cancellationToken);
+
+        protected abstract Task FetchLastfmData(BaseItem item, string id, CancellationToken cancellationToken);
 
         /// <summary>
         /// Encodes an URL.
diff --git a/MediaBrowser.ServerApplication/App.config b/MediaBrowser.ServerApplication/App.config
index 13283e4b5..2d47c4bea 100644
--- a/MediaBrowser.ServerApplication/App.config
+++ b/MediaBrowser.ServerApplication/App.config
@@ -15,7 +15,7 @@
     <add key="ProgramDataFolderName" value="MediaBrowser-Server" />
     <add key="ClientSettingsProvider.ServiceUri" value="" />
   </appSettings>
-  <startup>
+  <startup useLegacyV2RuntimeActivationPolicy="true">
     <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
   </startup>
   <runtime>
diff --git a/MediaBrowser.ServerApplication/LibraryExplorer.xaml.cs b/MediaBrowser.ServerApplication/LibraryExplorer.xaml.cs
index d15865485..d567a9fd8 100644
--- a/MediaBrowser.ServerApplication/LibraryExplorer.xaml.cs
+++ b/MediaBrowser.ServerApplication/LibraryExplorer.xaml.cs
@@ -43,6 +43,7 @@ namespace MediaBrowser.ServerApplication
         {
             _logger = logger;
             _jsonSerializer = jsonSerializer;
+            _libraryManager = libraryManager;
 
             InitializeComponent();
             lblVersion.Content = "Version: " + appHost.ApplicationVersion;
@@ -52,7 +53,6 @@ namespace MediaBrowser.ServerApplication
             ddlProfile.SelectedIndex = 0;
             ddlIndexBy.Visibility = ddlSortBy.Visibility = lblIndexBy.Visibility = lblSortBy.Visibility = Visibility.Hidden;
 
-            _libraryManager = libraryManager;
         }
 
         /// <summary>