TV A 'Glee' Star Heads Back to His Roots By Raphael Chestang 7:22 AM PST, December 6, 2011 Glee's Darren Criss is taking over for Daniel Radcliffe in the Broadway hit How to Succeed in Business Without Really Trying for three weeks while Glee is on hiatus. We caught up with Darren during a recent photo shoot for his new role. MORE: The Glee Tribute to Fashion "This is a classic American musical that bred nerdy kids like me who got interested in things like Glee," said Darren, who grew up doing musical theater. "So we're back to the beginning."Darren admitted that he is looking forward to the challenges that his new gig will present, but he also confessed that, in some ways, the job was a relief. "I've got about two weeks to rehearse for this, which is a luxury considering that I usually have about two hours to rehearse most things on Glee," said Darren.MORE: Glee Star Heather Morris Gives Us the Grand TourDaniel Radcliffe departs from How to Succeed in Business Without Really Trying on January 1. Darren takes over for Daniel from January 3 through January 22.