It's time to let your mustache grow, sing your heart out and whip out your Johnson (your pet snake, that is) -- Justin Bieber is performing at the 2015 MTV Video Music Awards!

You better beliebe it. JB will be playing his brand-new single "What Do You Mean?" on the VMA stage, joining already announced performers The Weeknd, Tori Kelly, Demi Lovato, Twenty One Pilots, A$AP Rocky, Pharrell and Macklemore & Ryan Lewis.

This is Bieber's return to the VMA stage -- he first performed at the show in 2010, singing a medley of "U Smile," "Baby" and "Somebody To Love." The year after, he brought his pet snake, Johnson, and now he's back with his new song, which will be released on Friday.

Let's take a look back at Bieber's VMA transformation:

2009

Welcome to Bieber's first VMAs -- six years ago! Justin walked the red carpet in a casual outfit, complete with leather jacket, canoodling with high-profile guests like Diddy.

Later in the night, he took the stage with Miranda Cosgrove to introduce Taylor Swift's subway performance. After Kanye West interrupted Taylor's acceptance speech for Best Female Video, he managed to give her a shout-out after the cringe-worthy moment: "First of all, I'd like to say, give it up for Taylor Swift. She deserved that one."

2010

Justin's second VMAs took him to the next level. He walked the red carpet with his mentor Usher.

Introduced by Kim Kardashian, he played two of his biggest hits "Baby" and "Somebody to Love," with a little reference to "U Smile," on an outdoor platform. He ran up to the stage with girls running after him, and during the performance, he busted out his drum skills.

Not only that, but he won Best New Artist for "Baby."

2011

The next year, he showed up with his new haircut -- the infamous chop that got rid of his floppy locks -- looking decidedly more grown up. Well, except for the fact that he brought a snake as his date.

Here's Paul Rudd checking out his snake, which he named Johnson.

This was the year that he and Selena Gomez confirmed their relationship. Sel was co-hosting the pre-show and trying to be professional when he went in for the kiss at the end of their interview.

He won Best Male Video for "U Smile" and accepted the award from Kim Kardashian.

2012

Justin was nominated thrice this year for "Boyfriend," but didn't take home any hardware.

2015

After Justin's hiatus from music, he's readying his comeback, including the release of "What Do You Mean?" on Friday. The video for his project with Skrillex and Diplo, "Where Are U Now?" has four nominations -- Best Art Direction, Best Visual Effects, Best Editing and Song Of The Summer.