Ariana Grande went 'Bang Bang' into the floor as she tripped and fell on stage during her Honeymoon tour. The pintsized pop princess took a tumble while performing her hit Bang Bang on stage in Toronto. The brunette beauty, who was cavorting around in a pair of sky high Louboutin over the knee boots, didn't let her stumble stop her though. Bouncing up to continue belting out her number.