Revealed: The Mystery Woman Rob Kardashian Argued With Before Cops Cuffed Him (VIDEO)

Kim Bikinis in Miami
Kim Kardashian shows off her beach bod!
Before Rob Kardashian was detained by police in Miami on Sunday evening, he was seen in an argument with a young woman — and Celebuzz has now positively ID’ed her.

A source tells us that the 25-year-old E! reality star was in a heated discussion with Roc Nation artist Rita Ora when he noticed an on-looking paparazzo.

Rob then tried to chase him down thinking it would be funny, but it ultimately lead to his detainment. Rob has since been released.

Rita, a 21-year-old British singer, is signed with Jay-Z’s record label Roc Nation and has been making waves with her catchy tunes “Hot Right Now” and “How We Do (Party).”