What is wrong with this Photo? (Nicki Minaj's Backside version)

There have been reports a couple weeks ago that Nicki Minaj ruptured her butt while performing on stage at the VMAs. Many didn't believe it but on Friday night, her backside appeared to lean to the left side as she performed at the iHeartRadio Music Festival at the MGM Grand Garden Arena in Las Vegas. The butt looks strange but maybe there is a better explanation...