Paris Hilton's Cleavage Holes, Sean Lennon's Confounding Colors + The Week's Worst-Dressed

Paris Hilton

[Photo Credit: Getty Images]

Poppy Delevingne

[Photo Credit: Getty Images]

Ireland Baldwin

[Photo Credit: Getty Images]

Coco Rocha

[Photo Credit: Getty Images]

Kelly Rowland

[Photo Credit: Getty Images]

Katie Price

[Photo Credit: Getty Images]

Olivia Munn

[Photo Credit: Getty Images]

Camilla Belle

[Photo Credit: Getty Images]

Sean Lennon

[Photo Credit: Splash News]

Alyssa Milano

[Photo Credit: Splash News]

Fashion Week is here, so prepare to be bombarded with inventive looks you know cost more than your monthly rent. Not every celebrity is hitting the marks this fashion week, or understands that snow is no excuse to look shabby.

Party girl Paris Hilton began her DJ residency in Atlantic City, getting in the booth at The Pool After Dark at Harrah's Resort on Saturday night. Apparently to the heiress, throwing on everything but the kitchen sink is an acceptable form of party attire. Relax, Paris! The Bling Ring is behind bars; no one is going to steal your furs anymore! Actress Camilla Belle made a bold move at the Los Angeles Caveman premiere, but her innovative top looks a little too much like it was inspired by a computer-generated background to us. Speaking of awkward patterns, Coco Rocha and Ireland Baldwin confounded guests at New York's amFAR gala, while Sean Lennon couldn't decide on one color... so he wore the whole damn rainbow. Also at the amFAR gala, Kelly Rowland hid those enviable legs seen so frequently in Destiny's Child videos under a few pounds of extra fabric. But why, Kelly, why?!

To find out who flopped, as well as what not to wear on your Valentine's Day date next week, check out the most regrettable looks from the past seven days.

[Photo Credit: Splash News, Getty Images]