Kojić soon met Momčilo Bajagić with whom he formed band Glogov Kolac, which performed only once in Uljma.

After Glogov Kolac disbanded, Kojić joined band SOS led by Miša Aleksić.

In 1983, Kojić released his solo EP Ne budi me bez razloga (Don't Wake Me up without a Good Reason).

After leaving Riblja Čorba, Kojić was involved in only few projects: He made a guest appearance on Bajaga i Instruktori album Jahači magle in 1986, wrote part of the folk band Svilen Konac's song "Sad ljubavi više nema" in 1987 and made a guest appearance on Indijanci self-titled album in 1995.

In spring of 1997, he was transferred in very poor health to a hospital in Belgrade where he died a few weeks later, on 11 April at the age of 40.