Idk if each group appear for one particular month only
Jan - Anne, Ken, Aum A, Smart, Por
Feb - JJ, Bella, Pop, Mew
march - Mark, Mario, Nadech
april - Ploy C, Chompoo others Idk
may - Namtarn, Wawwa, Chippy
june - Boy, Great, Matt, Alex
july - Janie (others names Idk)
aug - James Ma, Yam, Pat
sept - Taew, Top, Mint
oct - Diana, Nycha and other 2
nov - Louis Scott, Phet Thakrit with other two
dec - Kim, Margie, Yaya