diff --git a/src/MvcMusicStore.Spa/Models/SampleData.cs b/src/MvcMusicStore.Spa/Models/SampleData.cs
index 09e76327db..1643ad62e4 100644
--- a/src/MvcMusicStore.Spa/Models/SampleData.cs
+++ b/src/MvcMusicStore.Spa/Models/SampleData.cs
@@ -3720,12 +3720,12 @@ namespace MvcMusicStore.Models
                 },
             };
 
-            context.Albums.Add(albums);
+            context.Albums.AddRange(albums);
         }
 
         private static List<Artist> AddArtists(MusicStoreEntities context)
         {
-            var artists = new[]
+            var artists = new List<Artist>
             {
                 new Artist { Name = "65daysofstatic" },
                 new Artist { Name = "Aaron Goldberg" },
@@ -4032,14 +4032,14 @@ namespace MvcMusicStore.Models
                 new Artist { Name = "אריק אינשטיין" }
             };
 
-            context.Artists.Add(artists);
+            context.Artists.AddRange(artists);
 
             return artists;
         }
 
         private static List<Genre> AddGenres(MusicStoreEntities context)
         {
-            var genres = new[]
+            var genres = new List<Genre>
             {
                 new Genre { Name = "Pop" },
                 new Genre { Name = "Rock" },
@@ -4058,7 +4058,7 @@ namespace MvcMusicStore.Models
                 new Genre { Name = "World" }
             };
 
-            context.Genres.Add(genres);
+            context.Genres.AddRange(genres);
 
             return genres;
         }
diff --git a/src/MvcMusicStore/Models/SampleData.cs b/src/MvcMusicStore/Models/SampleData.cs
index fb95a89c32..92984ad9fc 100644
--- a/src/MvcMusicStore/Models/SampleData.cs
+++ b/src/MvcMusicStore/Models/SampleData.cs
@@ -3720,12 +3720,12 @@ namespace MvcMusicStore.Models
                 },
             };
 
-            context.Albums.Add(albums);
+            context.Albums.AddRange(albums);
         }
 
         private static List<Artist> AddArtists(MusicStoreEntities context)
         {
-            var artists = new[]
+            var artists = new List<Artist>
             {
                 new Artist { Name = "65daysofstatic" },
                 new Artist { Name = "Aaron Goldberg" },
@@ -4032,14 +4032,14 @@ namespace MvcMusicStore.Models
                 new Artist { Name = "אריק אינשטיין" }
             };
 
-            context.Artists.Add(artists);
+            context.Artists.AddRange(artists);
 
             return artists;
         }
 
         private static List<Genre> AddGenres(MusicStoreEntities context)
         {
-            var genres = new[] 
+            var genres = new List<Genre>
             {
                 new Genre { Name = "Pop" },
                 new Genre { Name = "Rock" },
@@ -4058,7 +4058,7 @@ namespace MvcMusicStore.Models
                 new Genre { Name = "World" }
             };
 
-            context.Genres.Add(genres);
+            context.Genres.AddRange(genres);
 
             return genres;
         }