Artist Biography Available in: Vatra, a rock group from Virovitica, Croatia, was formed in 1995. They are a true rock band and they proved it with numerous successful live appearances. They are one of the most prominent members of the croatian 'new-new wave' music movement. The members are Ivan Decak (vocal, back vocal, rhythm guitar), Irena Celio-Cega (keyboard), Robert Kelemen (solo guitar), Boris Gudlin (bass guitar) and Mario Robert Kasumovic (drums). Their musical style is often compared to the likes of EKV and U2.