KIIS FM held its annual Wango Tango concert on Saturday, May 11. Britney Spears, Demi Lovato, Avril Lavigne and many others walked the event's orange carpet, looking faboosh!

Event host Britney Spears was sexified in a one-shoulder black bandage-style dress by Roberto Cavalli and gold heels.

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Lovato, whose 'Demi' is out this Tuesday, May 14, showed off her newly blonde locks in a suicide roll'ish hairstyle and a rock ensemble comprised of black leggings, a see-through top, a statement necklace and stilettos. Sultry!

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Our fave Canadian rocker is never going to grow up, but her style has evolved and is age appropriate, all the while retaining her pop punk princess edge. With glittery leggings and heels, Av was hotter than a furnace. She needs to chill, though, with the inky, smudged eyeliner on her lower lashes. Did a Bic pen explode in her face or what? She's too pretty for all that gunk.

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Miguel was in the hizzay, rocking a style that we can only describe as "rocker R&B." Not only can he sing, but he has an enviable style. He's owning that leather vest. Did we mention how much we lurve him lately, mainly because he owns it on '#Beautiful,' his duet with Mimi?

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Jason Derulo is similar to Miguel in that he's got loads of talent and he dresses spectacularly. He, too, can work a vest, albeit in a different style and presentation.

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The lovely Ariana Grande, a newcomer on the scene with a belter's voice, was pretty in a hot pink two-piece. That cocked head pose is her red carpet signature. We've seen her do it a bunch at events, but it works for her. Lauren Conrad and Paris Hilton have signature poses that are similar, but Grande's is much cuter. Probably because she is so talented and poised to become the next M. Carey.

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Joe Jonas got his varsity look on.

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Victoria Justice was zebra-like in her black and white print dress, which was short in the front but had a train.

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Scottish sensation Emeli Sande was also on hand looking smokin' hot.

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Cute alert! The boys of Emblem3 were in the hizzouse, too! Where's Chloe?

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