LOS ANGELES -- Just days before the Video Music Awards kicked off, [article id="1647588"]Justin Bieber rehearsed[/article] for his big performance at L.A. Live to little fanfare. However, on Sunday night (September 12), Bieber's fans showed up with super-high Bieber Fevers for the teen star's [article id="1647654"]debut VMA performance[/article].

Not only did Bieber get Kim Kardashian to introduce him and poke fun at their, um, romance, but he managed to get VMA host Chelsea Handler out of the Nokia Theatre for his set with a sign that read "Chelsea Loves Bieber." While Kardashian and Handler were surprises, the set was much like his rehearsal, an obvious reference to his [article id="1645497"]"Hard Day's Night"-inspired VMA promo[/article].

The big difference this time around was the crowd of screaming fans there for Bieber's amplified set, which included "U Smile," "Baby" and "Somebody to Love." Aside from the crowd right in front of his stage, Beliebers also gathered across the street at the Staples Center to catch a glimpse of the performance.

"MTV, make some noise," Bieber told the crowd before he played "Somebody to Love" and confetti fell into the quad where he was playing. But Bieber didn't run off the stage as the song finished. Instead, he stood there, gave his dancers and band hugs and excitedly took in his moment as fans cheered on his triumphant debut VMA performance.

His fans agreed that the performance was well worth it. "I thought it was cool," fan Genevieve told MTV News from her spot atop a balcony overlooking the stage. "He's a better performer than I thought."

Reagan agreed, saying, "He really put together a great performance." And just like that, Bieber and his fans were whisked away.

What did you think of the performance watching at home? Let us know in the comments!

The 27th annual MTV Video Music Awards are happening live, right now at the Nokia Theatre in Los Angeles! Keep it locked on MTVNews.com for the latest behind-the-scenes scoop, red-carpet interviews, photos, winner reactions and more.