Glee 'Teenage Dream' Darren Criss Talks Going Shirtless for Two Days on Ellen

Darren Criss is making the talk show rounds and showcasing the talented a cappella group The Warblers to promote Glee's new album. On April 21, Criss headed to Ellen where he joined the Warblers to performed their hit rendition of Katy Perry's "Teenage Dream." After doing some major belting, Criss sat down with Degeneres to talk about being a "desert warrior" at Coachella and offering up a gift of Warblers' signature blue blazer to the chat show host. Take a look!