The high-octane energy of Cardi B's tour hit a literal bump in the road-or rather, a bump on the stage-this past Friday night in Las Vegas. Performing at the T-Mobile Arena as part of her highly anticipated "Little Miss Drama" run, the Grammy-winning rapper proved that while her choreography is sharp, gravity remains a formidable opponent. Source: Rich Polk / Getty According to TMZ, during a provocative transition while performing her "Thotiana" remix, a metal chair slipped out from under her, sending the mother of four onto the stage floor.