We have your plans for this evening right here. Click HERE to catch a live stream of Fun. starting at 8:30pm EST on iHeartRadio. Then tune in to CBS to see them perform 'We Are Young' on The Late Show with David Letterman at 11:35 EST.
In honor of the David Letterman performance we have come up with the Top 10 Reasons you need to pick up the album Some Nights:
10. You're guaranteed to hear this band while Out On The Town... or in a Chevy.
9. Stars like Janelle Monáe sing on this album.
8. One Foot will kick your ass until you agree to listen to this album.
7. The music on this album is All