diff --git a/skill/app.py b/skill/app.py
index 5474fe3..4194756 100755
--- a/skill/app.py
+++ b/skill/app.py
@@ -371,8 +371,9 @@ class NaviSonicPlayMusicByCurrentArtist(AbstractRequestHandler):
         artist_lookup = connection.search_artist(t["artist"])
         artist_album_lookup = connection.albums_by_artist(artist_lookup[0].get('id'))
         song_id_list = connection.build_song_list_from_albums(artist_album_lookup, min_song_count)
-        play_queue.clear()
-
+        play_queue.clea
+        
+        global backgroundProcess
         if backgroundProcess is not None:
             backgroundProcess.terminate()
             backgroundProcess.join()
@@ -406,6 +407,7 @@ class NaviSonicPlayMusicByCurrentAlbum(AbstractRequestHandler):
         song_id_list = connection.build_song_list_from_albums(result, -1)
         play_queue.clear()
 
+        global backgroundProcess
         if backgroundProcess is not None:
             backgroundProcess.terminate()
             backgroundProcess.join()