Before [article id="1647588"]Justin Bieber even hit the stage for rehearsal[/article] at L.A. Live on the Friday before the VMAs, you could feel the energy in the air. And once the teen pop star actually began rehearsing, it became clear [article id="1647656"]Bieber's Video Music Awards performance[/article] would be influenced by the [article id="1645497"]"A Hard Day's Night"-inspired VMA promo[/article] he shot.

Bieber first did a rough run-through of a medley of his hits "U Smile," "Baby" and "Somebody to Love." Then he stepped out of a chauffeured red-and-white '57 Chevy, followed by a gaggle of female fans -- an obvious reference to the Beatles. When Justin took to the stage, he wanted to make sure he got everything right: from the way his drum kit sounded to the way his dancers hit their marks to the look of his leather jackets for the show.

With the girls surrounding the stage as they watched Bieber rehearse, the driven, hard-working teen proved he would be hands-on and involved in every detail. What was perhaps most surprising was that his outdoor rehearsal went virtually unnoticed by anyone other than those involved with the practice session.

While Bieber seemed to be nailing an engaging first [article id="1647590"]VMA performance, Kim Kardashian[/article] could be heard teasing about their "romance" in a hilarious voiceover.

As the hour-and-a-half-long rehearsal progressed, fans did eventually turn up -- one even shouted to Bieber, "Follow me on Twitter!" -- but the scene around the barricaded stage area remained relatively chill. Justin made sure to remind fans of one thing: "What's up, everybody? I love you!"

The rehearsal ended with Bieber at the drums, closing out "Somebody to Love," with black and red confetti falling from the sky. It remained entangled in the trees right through Sunday, when yet more confetti came down on the [article id="1647673"]Best New Artist[/article] winner.

The Moonmen have all been handed out and the stars have gone home, but there's plenty of 2010 MTV Video Music Awards news, interviews, behind-the-scenes scoop, party reports and more still to come, so keep it locked on MTVNews.com.