If there's one award show out there where pretty much anything goes, it's gotta be the MTV Video Music Awards. Sure, MTV isn't really in the music video airing business anymore, but that doesn't mean this annual ceremony isn't still an event where music's brightest stars get to go a bit wild.

The 2015 Video Music Awards air this Sunday, and we can't wait to see what kind of ridiculousness will go down. Whether it's the crazy fashion, out-there performances, or totally random incidents (we're talking about you, stage crashers), the VMAs have continuously left us going... "what just happened?" It's been quite the ride over the years.

Let's take a look at some of the most outrageous, totally WTF moments from MTV VMAs past.