He’s burned Kobe … He’s burned Barkley … and now Shaquille O’Neal has his sights on Justin Bieber because he’s been tapped to be an official flamethrower at the Comedy Central Roast. Shaq — along with stars like Snoop Dogg, Ludacris, Jeff Ross and Martha Stewart will be tasked with ripping the Biebs to shreds in front of a packed house on March 30th. Shaq and Bieber have history — they once had a dance battle back before Bieber turned into a bad boy.