, Jonathan Groff
would have not been able to sing Adele's guttural, smoldering anthem of heartbreak, "Rolling in the Deep," which he used to swagger back onto the hit show last week. The actor, previously best known for his work in New York theatre, says it was Glee
that taught him to rock out. "The first song I sang with Vocal Adrenaline was 'Highway to Hell' and I remember calling [Music producer] Adam Anders and saying, 'Maybe ...