OOPSIES! Four Women Smash Britney's 'Oops! I Did It Again' While Playing The Same Piano Grant Brunner Not only are the vocals spread out among four people, they're able to perfectly nail the piano part too. 1 day ago · 3.4k reads · · · @grabas.sis Oops… #fyp #foryou #britneyspears #piano #sisters #singing #foryoupage ♬ som original - GRABAS Via grabas.sis.