WATCH: The Rock Channels Taylor Swift, Flips Off Jimmy Fallon in 'Lip Sync' Premiere

Want to see a 260-pound man “Shake it Off?” Last night, Dwayne “The Rock” Johnson appeared on Tonight Show spin-off, Lip Sync Battle, where he went head-to-head with co-executive producer, Jimmy Fallon. The show, hosted by LL Cool J, allows its celebrity contestants to pick and choose their own tunes. Some selections may come as a surprise […]