As Kim pointed out to Buck Hollywood, "We're all kind of coordinated, so it looks like we're in some kind of music group." Was that a hint to the "Glee" casting directors?
Kim rocked the most glamorous number in a one-sleeved, crystal-sprinkled number by Zuhair Murad.
The tight waist and draping across her hips perfectly showcased her assets.
At a pre-party on Aug. 6, Kim told StyleList about her closet-jockeying: "I might wear this Zuhair Murad dress. It's really cool, one-shoulder. I'm just waiting to see. There are a few others that are being sent over." Murad won out.
When it came to her hair, Kim turned to her fans on Twitter. After a winning vote for a ponytail, she slicked her hair back into a tight, high-riding style.
Kourtney, meanwhile, dropped a hint to us about her Sass & Bide pick. The buff-hued dress escaped looking like a typical bandage dress with its asymmetrical cut, chiffon draping, and splash of crystals that diagonally adorned the front, though, at first glance, the sparkly detail looked like a pageant sash.
Khloe bridged the two looks in a thigh-grazing minidress with a blousy, plunging peachy top and clingy black skirt.
Khloe's new husband, Lamar Odom, clearly approved since he stepped off the carpet, hijacked a photographer's camera and starting taking pictures of the bodacious threesome.
Even George Lopez appeared to have received the color memo -- he showed up on stage in drag as "Cougar Kardashian," wearing a tight, shiny LBD.
We didn't get to see a mother-daughters moment, though, as Kris Jenner told us she was giving her tickets to daughters Kendall and Kylie.
The 2010 Teen Choice Awards air tonight at 8/7c on Fox.
In the meantime, get an advanced look at the splashiest styles.