But now it's straight up cancelled!
Ticket holders were sent the following email on Friday:
[Image via Fayesvision/WENN.]
The Late Night host brings back by popular demand the legendary faux folk duo Black Simon and Garfunkel to cover the amazing Roar!
Gotta give it to ?uestlove - his roar may even be better than Katy's herself!
Ch-ch-check out the video (above) to hear the adorable new take on one of the biggest hits of 2013! When can we get this version on iTunes?