You will need to turn off the music. Scroll down to the green playlist and click on the small pause button the top left hand side of the green box, just under where the picture/title of the album and the current/playing song name is.
Also saw this on David Letterman. Thankfully, we had DVR'd Letterman to watch Dennis Leary, because I am not sure who thought this was funnier - my husband me or our kids. We have watched it many times now.