Brad Pitt [1] had a very busy weekend, popping up at the star-studded Producers Guild Awards [2] on Saturday following his surprise appearance at the Sundance Film Festival [3]. After touching down in LA, the actor suited up in a tux and hit the award show's stage to accept the Producers Guild's visionary award on behalf of his production company, Plan B Entertainment. It's just the latest appearance for the handsome star this award season: earlier this month, Brad led a crowd in an impromptu sing-along [4] at the Palm Springs International Film Festival.