Suga posted four photos on his 17th day, saying "MU Bang" on his instagram.
Suga in the public photo is waiting for KBS 2TV music program Music Bank' stage.
On the other hand, BTS showed the new song title 'Yet To Come' and 'For Youth' stage on Music Bank' on the day, and won first place with 'Yet To Come' in the confrontation with their hit song 'Butter'.
About BTS
BTS, also known as the Bangtan Boys, is a South Korean boy band that was formed in 2010 and debuted in 2013 under Big Hit Entertainment.
 Wikipedia