Stevie Nicks' Fleetwood Mac classic "Landslide" has been sung by many major stars over the years – the Dixie Chicks, the Smashing Pumpkins, Tori Amos and Gwyneth Paltrow on Glee, just to name a few. On last night's season finale of The Voice, contest winner Javier Colon joined that pantheon by singing the delicate folk ballad as a duet with Nicks herself. Colon's coach Adam Levine was totally blown away by the singer's skillful performance with the rock legend. "I'm just speechless," he said. "You just sang with Stevie Nicks and that was one of the most beautiful duets I've ever heard in my life."