Watch - Adam Lambert And Cyndi Lauper Perform A Haunting 'Mad World'

Adam Lambert recreated one of his most well-known American Idol performances with a little help from Cyndi Lauper at Lauper’s all-star Home For The Holidays benefit in Manhattan for homeless LGBT youth.

Adam sharing the stage with his idol went all fanboy. “Look who I get to do a duet with! OMG!” Adam shared with the crowd at New York City’s Beacon Theater before Cyndi walked on stage. “I can’t believe she asked me to do this! This is amazing!”

Watch Adam and Cyndi duet after the jump.