Five Unforgettable VMA Reactions: Miley, 'NSYNC, One Direction Fans Go Wild

On VMA night, MTV called out to stans for their best Instagrams and Vines, using the hashtag #VMAreact.

From Miley Cyrus twerking onstage to 'NSYNC's reunion, Sunday night's

2013 Video Music Awards at the Barclays Center offered up plenty of shock-worthy moments. But while some viewers were content to yell at the TV, others took to their Vine or Instagram accounts to express exactly how they were feeling.

MTV stoked all that by asking fans to attach the hashtag #VMAreact to their posts. So after the lights went down, we dug around and found our five favorite fan reactions to some of the best moments from the awards show.

The first VMA of the night went to Thirty Seconds to Mars for Best Rock Video. When we presented the award to them on the Pre-Show red carpet, one Echelon fan member was so excited he turned into the Hulk, ripping his shirt right off!

Miley Cyrus and Robin Thicke had one of the most interesting performances of the evening. There were giant teddy bears, giant booties, tons of twerking and lots of tongue. ... A few fans weren't sure how to feel about it.

As the only independent artists with VMA nominations and a slot to perform, Macklemore & Ryan Lewis won just for being there. So when the duo took home three out of the six awards they were nominated for, including Best Hip-Hop video, their Shark Face Gang was beyond ecstatic.

If we know anything about Directioners, it's that they love social media. So when the guys won Best Song of Summer — the fan-voted category — their fans went wild.

After all of the rumor and speculation, 'NSYNC reunited at the VMAs to during Justin Timberlake's performance. Fans screamed, sang along and pretty much freaked out when they appeared.