Teaming up for a special performance, Adam Lambert and Cyndi Lauper performed a duet of "Mad World" at the Cyndi Lauper & Friends: 'Home for the Holidays' benefit at The Beacon Theatre in New York City on Saturday (December 8).
The former "American Idol" contestant sported an edgy look in a black-and-white top, black jacket, black leather pants, and heavy black eyeliner as he belted out the cover with the "Girls Just Wanna Have Fun" singer.
Prior to beginning, the 30-year-old glam rocker gushed "I can't believe she asked me to do this. This is amazing."
The benefit concert was held to raise awareness about lesbian, gay, bisexual, and transgender youth homelessness, and included guests like Sarah McLaachlan, Whoopi Goldberg, and Roberta Flack.
Check out the entire performance in the player below!