They are a K-Pop band, so they play their own instruments. Woosung and Dojoon are the main vocalists, though they both play the guitar and Dojoon even sometimes plays the keyboard. Hajoon is the drummer and Jaehyeong plays the bass, so they don't sing much;) (also they did sing the "I'm lonely" part lol)
@@tafeekafeethey aren’t a Kpop band its a Korean rock band. Two big differences, please don’t explain to people if you don’t know the two differences, it’s just very disrespectful to Kpop and Rock. In rock bands there are main vocalist and obviously Woosung and Dojoon are the main vocalist, every time you see a band that has only one singer it means they are a one lead singer band, and then two means they are a dual lead singers. This is short for people who don’t know not going in full detail, someone else can add on.
This a korean rock band not a kpop group so they play their own instruments and the 2 that didnt sing are the one whoy pay the instruments while the other two are the vocalist.