In video footage exclusively obtained by ET, a seemingly tipsy Bieber -- dressed in a distressed turquoise hoodie and tan trousers -- took a seat on the DJ booth to address the crowd.
Before he began his speech, the 22-year-old pop star fell backwards (as his hit "Sorry" was playing) and had to be helped up by security.
"Yo, you guys havin' a good night tonight?" Bieber asked the crowd, announcing he was "not going to give like a 30-minute speech" because he's "not Kanye West," but he did, however, have some things he wanted to get off his chest.
"I think people hate on people who are themselves, you know?" he said, slightly slurring his words. "Maybe I'm drunk or maybe I'm just speaking real s**t, but I feel like a lot of the reason why there's so many people that hate on me is 'cause I'm just myself."
"You know, you can hate on me for being myself, too, but... if you just are yourself and are OK with just being yourself and making spontaneous decisions and just, like, wearing whatever you want to wear and doing whatever you want to do -- we're going to make bad decisions sometimes, but we ultimately want to make good decisions," he continued. "So let's try to make the best decisions as we possibly know how to give and have a good night!"
A few hours earlier, the "Love Yourself" singer freaked out his fans when he posted a throwback photo of himself and his ex-girlfriend, Selena Gomez, mid lip-lock. He originally posted the flashback pic without a caption, but later added, "Feels."