Mickey's friends throw him a surprise birthday party at Minnie's house. The chef brings out the cake (with 2 candles); Mickey manages to blow all the cake onto the chef's face, while the candles stay lit. He unwraps his present: a miniature piano. He plays a duet of I Can't Give You Anything But Love, Baby with Minnie, followed by an instrumental version of The Darktown Strutter's Ball, which everyone dances to (including Mickey and Minnie, while the piano stools keep playing). Mickey then plays...