The Red Hot Chili Peppers decided long ago they were never going to mime a live performance. The band made an exception for the NFL, it turns out. The group’s bassist, Flea, said in a letter to fans posted on the group’s website Tuesday that the Rock and Roll Hall of Fame members pretended to play along to a pre-taped track of “Give It Away” during the Super Bowl halftime show as Anthony Kiedis sang live. The request came from NFL officials who felt it was too difficult to pull off a completely live performance because of potential sound issues.