Koes Bersaudara (Koes Brothers) formed in Jakarta, Indonesia in 1960. At the beginning, the group consisted of 5 Koeswoyo brothers – Jon, Tonny, Nomo, Yon and Yok. After their first album was released in 1964, older brother Jon quit reducing the group to a four-piece. Tonny (lead guitarist and songwriter) was the leader of the group with Yon (rhythm guitar) and Yok (bass) handling the vocals along with Nomo on drums. By 1965, the group started to grow their hair longer Read more on Last.fm