Josh Groban

Singer-songwriter Josh Groban feels downright giddy about being Conan O’Brien’s friend. Josh sits down with Conan to discuss his breakout moment at 16 singing with Céline Dion at the Grammys, finding ways to exercise his comedic inclinations, and asking his dad to play trumpet on his latest album Cinematic. Plus, Conan comes face to face with his character’s…