Who knows? ♪ Who knows? ♪ Who knows? ♪ Who knows? Who knows? ♪ Who knows? Who knows? (You) ♪ Who knows? (Baby) Who knows? (You) ♪ Who knows? (Baby) Who knows? (You know me) Who knows? (Baby) Who knows? (You know me) Who knows? (Baby) Who knows? (You know me) Who knows? (Baby) Who knows? (You know me) Who knows? (Baby) Who knows? (You know me) Who knows? (Baby) Who knows?