diff --git a/types/apple-music-api/apple-music-api-tests.ts b/types/apple-music-api/apple-music-api-tests.ts
index 6b37900a06..e0fc84fc73 100644
--- a/types/apple-music-api/apple-music-api-tests.ts
+++ b/types/apple-music-api/apple-music-api-tests.ts
@@ -563,3 +563,34 @@ const PlaylistResponse: AppleMusicApi.PlaylistResponse = {
         },
     ],
 };
+
+const ArtistResponse: AppleMusicApi.ArtistResponse = {
+    data: [
+        {
+            id: '367955316',
+            type: 'artists',
+            href: '/v1/catalog/us/artists/367955316',
+            attributes: {
+                editorialNotes: {
+                    short: 'short note',
+                    standard: 'elaborated, standard-length note',
+                },
+                genreNames: ['Jazz', 'Rock'],
+                name: 'artist name',
+                url: 'artist/url',
+            },
+            relationships: {
+                albums: {
+                    data: [
+                        {
+                            id: '897072740',
+                            type: 'albums',
+                            href: '/v1/catalog/us/albums/897072740',
+                        },
+                    ],
+                    href: '/v1/catalog/us/songs/897072750/albums',
+                },
+            },
+        },
+    ],
+};
diff --git a/types/apple-music-api/index.d.ts b/types/apple-music-api/index.d.ts
index 41345d807d..88458bcaa3 100644
--- a/types/apple-music-api/index.d.ts
+++ b/types/apple-music-api/index.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for non-npm package Apple Music API 0.3
+// Type definitions for non-npm package Apple Music API 0.4
 // Project: https://developer.apple.com/documentation/applemusicapi/
 // Definitions by: Noah Chase <https://github.com/nchase>
 //                 Useff Chase <https://github.com/useffc>
@@ -20,6 +20,11 @@ declare namespace AppleMusicApi {
         data: Playlist[];
     }
 
+    // https://developer.apple.com/documentation/applemusicapi/artistresponse
+    interface ArtistResponse {
+        data: Artist[];
+    }
+
     // https://developer.apple.com/documentation/applemusicapi/relationship
     interface Relationship<ResourceType> {
         data: ResourceType[];
@@ -130,7 +135,7 @@ declare namespace AppleMusicApi {
     // https://developer.apple.com/documentation/applemusicapi/artist/relationships
     interface ArtistRelationships {
         albums: Relationship<Album>;
-        genres: Relationship<Genre>;
+        genres?: Relationship<Genre>;
     }
 
     // https://developer.apple.com/documentation/applemusicapi/album