As well as his solo career, Maijanen was a member of The Royals, Rock'n'Roll Band, Pepe & Paradise and he was the keyboard player and producer of Dingo and the Hurriganes.
Solo kariyerinin yanı sıra, Maijanen, The Royals, Rock'n'Roll Band, Pepe & Paradise müzik gruplarının bir üyesiydi ve Dingo ve Hurriganların klavyecisi ve yapımcısıydı.