fixes #769 - Artists pages don't include music videos

MediaBrowser.Controller/Entities/MusicVideo.cs

@@ -3,7 +3,9 @@ using MediaBrowser.Controller.Providers;
 using MediaBrowser.Model.Configuration;
 using MediaBrowser.Model.Entities;
 using System;
+using System.Collections.Generic;
 using System.Linq;
+using System.Runtime.Serialization;
 
 namespace MediaBrowser.Controller.Entities
 {
@@ -33,6 +35,23 @@ namespace MediaBrowser.Controller.Entities
         /// <value>The revenue.</value>
         public double? Revenue { get; set; }
 
+        [IgnoreDataMember]
+        public List<string> AllArtists
+        {
+            get
+            {
+                var list = new List<string>();
+
+                if (!string.IsNullOrEmpty(Artist))
+                {
+                    list.Add(Artist);
+                }
+
+                return list;
+
+            }
+        }
+
         /// <summary>
         /// Determines whether the specified name has artist.
         /// </summary>