Coldplay Share Behind-the-Scenes Super Bowl Stories and Perform on 'The Tonight Show'

Coldplay were the musical guests on The Tonight Show With Jimmy Fallon last night, and in addition to performing two cuts from their latest album A Head Full of Dreams, "Up&Up" and the title track, Chris Martin also shared some Super Bowl gossip. After joking that the U.K. band was "so high" during their headlining halftime show, the frontman…