This past weekend at Toronto's Lumianto Festival, singer Rufus Waiwright staged a production of If I Loved You: Gentlemen Prefer Broadway, a show that centers around the concept of male-female duets being performed exclusively by men. The finale saw Ezra Koenig, David Byrne, Boy George, Josh Groban and others teamed up on stage to perform 'Summer Nights' from the film Grease.

Watch the performance below.