We’re looking back at some of the harshest burns from the Roasts of Justin Bieber, Bruce Willis, Rob Lowe and more. 00:00:00 Pete Davidson at the roast of Justin Bieber. 00:01:20 Natasha Leggero at the roast of Justin Bieber. 00:02:39 Shaquille O'Neal at the roast of Justin Bieber. 00:03:48 Martha Stewart at the roast of Justin Bieber. 00:05:10 Snoop Dogg at the roast of Justin Bieber. 00:05:45 Hannibal Buress at the roast of Justin Bieber. 00:07:03 Ron Burgundy at the roast of Justin Bieber. 00:07:45 Justin Bieber roasts his fellow dais members. 00:09:03 Nick Kroll at the roast of James Franco. 00:09:57 Jonah Hill at the roast of James Franco. 00:10:40 Sarah Silverman at the roast of James Franco. 00:11:03 Seth Rogen at the roast of James Franco. 00:11:21 Bill Hader at the roast of James Franco. 00:12:44 Natasha Leggero at the roast of James Franco. 00:13:56 Andy Samberg at the roast of James Franco. 00:16:09 Aziz Ansari at the roast of James Franco. 00:17:03 James Franco roasts his...