Kim Kardashian Warns Rob Kardashian That 'Dancing With the Stars' Is "Hard"

Whether Rob Kardashian wants to hear it or not, his big sister, Kim Kardashian, is offering him some advice before he competes on Season 13 of Dancing With the Stars — "It's hard."

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Kim was kicked off Season 7 of Dancing With the Stars after just three weeks and she "really hopes" her brother can last longer.

“It’s hard and I don’t think he understands the hard work that’s gonna go into it,” Kim told Access Hollywood. “He’s getting a taste of it right now.”

Rob will be competing on the show with Cheryl Burke as his partner.

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So, what final piece of advice does Kim have for Rob?

“I just hope that he really stays committed. Commit to his performance,” she said. “That’s what I wish I did.”