Darren Criss Lets Fans Know They're 'Not Alone' at NYC StarKid Concert

Before becoming a TV star on Glee, Darren Criss was a member of StarKid, an ensemble of musicians, actors and designers best known for the YouTube sensation A Very Potter Musical. The crew recently hit the road for a North American tour, which concluded at New York City's Gramercy Theatre on November 27. Criss, who's readying to make his Broadway debut in How to Succeed in Business Without Really Trying on January 3, took to the stage with his StarKid pals to perform his original tune "Not Alone." Think the crowd was eager to see him live? Take a look (and prepare for screams!) below.