Billy Joel, 64, who is still touring and plays a monthly gig at New York City's Madison Square Garden, stopped by the Tonight Show where he and Jimmy Fallon used the app'Loopy' to create a four-part backing track of themselves to sing 'A Lion Sleeps Tonight' a cappella. Let's just say, there's a certain former host who must be eating his heart out.
With "My Queue" you can quickly save videos to watch later.
To add an item to your queue just click the sign next to the video.
Once you've added a video visit "My Queue" to start watching!