Josh Groban Videos
Heart, Michael Bolton, John Mellencamp, Cyndi Lauper, Josh Groban, Imagine Dragons' Dan Reynolds contribute to anti-campaign ballad on 'Last Week Tonight'
Singer returns to late-night show with astounding follow-up to 'The Best Tweets of Kanye West'
Sam Smith, Pitbull, Iggy Azalea, Britney Spears, Blake Shelton and more confront their haters in the latest Mean Tweets segment
Celebrity chef's new web series also features interviews with Patti Smith, Perry Farrell and Josh Groban
Rufus Wainwright, Josh Groban and more take on "Summer Nights" in Toronto