Fifteen-year-old lip-sync sensation Keenan Cahill became a YouTube view multimillionaire after he began posting hilarious renditions of this year's hottest music tracks.
From his, um, overly animated rendition of Katy Perry's 'Teenage Dream' to Usher's 'DJ Got Us Fallin' in Love', this pint-sized dude has the whole world obsessed with his videos.
Think it couldn't get better than having a few million fans and a personal tweet from Katy Perry?
Well, it looks like it has. The teen star has appeared on the Chelsea Lately show, lip-synching 50 Cent and Jeremih's collaboration, 'Down On Me', with the man himself!
That's right — Fiddy joined Keenan in his bedroom for his television debut.
Check out Keenan and 50 Cent's video!
Related video: 50 cent's lip sync duet with Keenan Cahill
