When Keeping Up with the Kardashians debuted, Kris Jenner's only son, Rob Kardashian, was just 20. At the time, he was dating singer Adrienne Bailon, until that relationship came to a screeching halt. Rob subsequently admitted he cheated on her.

Over time, Rob became a scarcer presence on KUWTK, but he arguably followed the family tradition of attempting to parlay his celebrity into even bigger fame. In his case, that involved appearing on Dancing With the Stars in 2011, three years after big sister Kim Kardashian competed, but was sent home early on. As she told OK! after being eliminated, she "never, ever claimed to be a dancer."

Rob, however, did far better, with he and partner Cheryl Burke nabbing the season's runner-up spot (J.R. Martinez took home the mirrorball trophy). In a post-finale interview with Good Morning America, Rob was asked if Kim was jealous of his more-successful DWTS performances. He insisted there was "no jealousy. I mean, my family's rooting for me from day one...but she only lasted like week two or three, but who's counting?"