It happened right after Jennifer Lopez decided to take the stage in her best Ariana Grande-like get-up (though, let's be real: Ariana Grande is definitely a JLo mini-me) and shake her booty for a good four minutes as her backup dancers took pics on their phones.
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Not too long after, Justin Bieber took the stage and decided to strip down to his Calvin Kleins. People began booing. His voice cracked at one point and he struck a few awkward poses on stage.
That's really the gist of it, but here are the photos I know you so desperately want.