Demi Lovato Brings Nick Jonas Out For “Catch Me” & “Don’t Forget”

Demi Lovato has recently gone from stage performer to judge on The X Factor, but she wasn’t about to critique the singer she brought to the stage of The Greek during her show last night — Nick Jonas, who joined her with his guitar for “Catch Me” and “Don’t Forget,” about which she joked, “I think we wrote this together.”