Bieber and his friends are laughing at Selena's "bad influence" claims, because they say she's always the drunk at the party. Bieber acknowledges he gets wasted, but whenever he had parties Selena was downright competitive ... smoking as much weed as the guys and out drinking them. Justin is happy he's no longer with Selena because she's out of control.
Why am I not shocked that a 5'5" girl can out drink Bieber and his boys? Yes it was Selena who dragged Bieber and his dad and the rest of his crew into the seedy world of drugs and alcohol. You are looking into the eyes of evil.