The couple performed "You're the Top" from Anything Goes at the benefit concert that was held at LA's Hollywood Palladium. The event also featured performances from "Glee" stars Darren Criss and Amber Riley, Jesse Tyler Ferguson and Barrett Foa, among others.
Harris has been seen on Broadway in Assassins, Proof and Cabaret. He also starred in the New York Philharmonic production of Company. The performer is the winner of two 2010 Emmy Awards and was nominated for his work on the CBS series "How I Met Your Mother."
The Trevor Project is the leading national organization providing crisis intervention and suicide prevention services to lesbian, gay, bisexual, transgender and questioning (LGBTQ) youth.
To watch the performance with Harris and Burtka, look below: