Rob Kardashian Shows Off His Guns at ‘DWTS’ Rehearsal (PHOTOS)

Cavallari Goes Dancing
Kristin Cavallari enjoys night out with ‘DWTS' cast.
If Rob Kardashian is nervous about his Dancing With the Stars debut, he sure isn’t showing it. Kim’s little bro was all smiles and showing off his muscular arms as he headed to practice with his mom Kris and half-sister Kylie Jenner.

With the DWTS season premiere less than a week away, Rob and his dancing partner, Cheryl Burke, seem ready to take the stage. She gushed about his progress, writing on Twitter:

“@RobKardashian got our whole routine to music today. Makin progress!”

Rob revealed to Us Weekly that he is “not a confident dancer” but his mom-ager finally convinced him to sign up for the competitive dancing show.

“My mom pretty much forced me to do this show. She did it to Kim and now she’s doing it to me! [She] just says, ‘Smile and be yourself””

Rob will be joining an all-star line up, which includes David Arquette, George Clooney‘s former girlfriend Elisabetta Canalis and Carson Kressley of Queer Eye fame.

Who do you think will win that mirror ball trophy? Share your thoughts in the comments!