Courtesy: Kris Jenner/Twitter

KimKardashian091911.jpgRob Kardashian's big Dancing with the Stars debut is finally here!

The Kardashian clan -- including mom Kris Jenner, stepdad Bruce Jenner, and sisters Kim Kardashian, Kourtney Kardashian and Kiley Jenner -- were all on hand to support Rob backstage before his first live DWTS performance. All of the girls looked like they were ready to dance themselves!

The Kardashian girls are always so glam!

Earlier in the day, X17 photogs caught Kim getting ready for Rob's big night. The reality star went bare-faced to her fave Beverly Hills salon to get a mani-pedi, and she was even given a nice neck and back massage too.

It makes sense that Kim wanted to relax a little -- she's been hyped to see her lil bro perform all day. "I woke up today so excited and nervous for @RobKardashian !!! Its show time today! Can't wait for Dancing With the Stars!" she Tweeted Monday morning.

Kris might be even more on edge than Rob and Kim. Just before her son hit the stage, mama Jenner Tweeted, "Yikes!! Here we go minutes away!!!!! Going into the ballroom!!!!!!! Yippeee!!!"

So sweet!