The #1 on Music Bank on 2013-09-20 was “Who You?” by — — win No. 1 for the song and career win No. 8 for — (No. 8 on this show).
“Who You?” has 1 music show wins in total: 2013-09-20 Music Bank. — had 3 wins in 2013 up to this date, and this was win No. 8 on Music Bank. The previous week's Music Bank #1 was “Damaged Lady” by —. Episode data comes from broadcasters' published results (Wikipedia lists, CC BY-SA) and is recounted daily.