4K Comedy Central Roast of Justin Bieber (2015) online Year: 2015 Country: USA Director: Stars: Natasha Leggero, Will Ferrell, Kevin Hart Stars: Natasha Leggero, Will Ferrell, Kevin Hart Genre: Comedy Several roasters, and the master himself Kevin Hart, make fun of Justin Bieber. Watch Comedy Central Roast of Justin Bieber (2015) online