Excitement turned way up in anticipation of tonight’s big show, things got a little wild at MTV’s pre-VMA bash last night. The evening was headlined by notoriously hard-partying Justin Bieber pals The Wanted, who surprised the crowd by inviting fellow Scoot Braun signee PSY onstage for a little “Gangnam Style” action. Afterwards, the boys took the occasion of band member Max George‘s birthday as an opportunity to shove a cake in his face at the end of their set. Glad you came?
Also last night, with less icing but just as sweet, this month’s VH1 You Oughta Know artist Walk The Moon played a set that also included a very special surprise guest. After rocking out to “Tight Rope,” the boys welcomed none other than John Mayer onto the stage for a whiling cover of David Bowie‘s “Let’s Dance.” Word had it that Mayer was planning to sit out these next few months while he recovers from throat surgery, but we’re glad he’s decided otherwise because we would love to see more like this.