bangtan boys, aka bts, coming out of their debut in 2013, with their hit single 'No more dream' with 7 members (joonie, wwh, yoongi, hobi, chimmy, tae tae, and kookie) now it being 2020 and the bangtan boys are at the top of music billboard now, i have been army since 2016 and HOLY NAMJESUS they are amazing, my qeustion, how long does it take them to write the lryics , make the beat, and produce the songs and albums. how much profit do the albums make?