Several roasters, and the master himself Kevin Hart, make fun of Justin Bieber.
Did You Know?
This is not the most watched roast of all time, it did not break any records- that is very incorrect. The most watched roast was 4 years before this one: Comedy Central Roast of Charlie Sheen
(2011), with 6.4 million viewers. See more
Justin's followers are called Beliebers, because these days it's politically incorrect to use the word "retard".
References The Wedding Ringer