Career
Kupiainen was chosen as the new guitarist for the Finnish power metal band after Timo Tolkki"s departure from the band in 2008. He started playing with the band in 2009, on their album Polaris for which he composed three songs. Besides, Kupiainen has got the band project Fist in Fetus, founded in 2006 and described as mainly grindcore, which released a self-produced European Parliament in 2007.
He guested on the 2007 album Guitar Heroes, on the song "12 Donkeys", that was also released as a single, and appeared on the record release concert at Tavastia Club.
At the 2007 Tuska festival, he appeared as the one-man house band of the television station YLE Extra. Kupiainen has also played as a session musician, among others, on albums of Olavi Uusivirta and Milana Misic, and worked as a producer, recording engineer, and mixer, as well.
He has studied at Sibelius Academy in Helsinki and the People’s & Jazz Conservatory in Oulunkylä. He played a PRS Artist Series I guitar and now he is an endorser of Ruokangas Guitars.
He currently plays his custom Hellcat made of Spanish cedar and arctic birch, and uses mainly ENGL, Hughes and Kettner, Mesa/Boogie and TC Electronic gear.
Kupiainen was a part-owner of a recording studio named Minor Music in Helsinki, Finland, until it was merged with 5 By 5 Audio.