Supersonic Songbird has been founded by Ivan Mihaljević. Ivan holds the Authorized Complete Vocal Technique (CVT) Teacher authorization since 2020 and has regularly attended updates at Complete Vocal Institute in Copenhagen, Denmark since then. Apart from CVT, Ivan is also well versed in Estill Voice Training (EVT) and Speech Level Singing (SLS) methods and follows the latest scientific research in the fields of vocal technique and physiology. He is teaching singing full time and has already worked with hundreds of singers at all levels from 23 different countries and has taught several workshops and masterclasses in person and online.

Ivan Mihaljević is a vocal coach, singer, guitar player and music producer from Zagreb, Croatia, born in 1986. He started playing guitar and singing at the age of 14. Five years later he played one of the biggest metal festivals Wacken Open Air with the band Hard Time. In the next 10 years he played in opening acts for Whitesnake, The Cult, Scorpions, Paul Gilbert, Richie Kotzen, Tito & Tarantula, and many others. In November 2008, he played with the inventor of the electric guitar – Les Paul in New York. In 2012 he performed with his band Side Effects on the biggest Italian festival Heineken Jamming Festival along with Red Hot Chili Peppers, Prodigy, The Cure, Noel Gallagher (Oasis), Evanescence and Gorillaz. In the same year Side Effects won the first place in the Italian competition Ritmi Globali Europei and as a prize the band recorded a single Recoil with the producer Bob Benozzo who won several Latin Grammy Awards.

Ivan won the Croatian Musician’s Union award Status for the best guitar player of 2015.

In 2020, Ivan finished the education for an Authorized Complete Vocal Technique Teacher and has since been teaching singing full time in person and online.