Konstantin 'Laars' Naumenko is the vocalist, composer and sound producer from Ukraine. In 2002  he  founded one of the most famous Ukrainian power metal band called SUNRISE. In period from 2006 to 2021 SUNRISE recorded the four full-length albums and a number of singles.

   In the end of 2011 he joined to Ukrainian neoclassical prog. power metal band Majesty Of Revival and and together they've recorded the two full-length studio albums.

   In 2012 he became the new vocalist of Ukrainian power metal band W. Angel's CONQUEST and recorded "Taste Of Life" album which was released in 2015 by Ferrrum record label, Germany.
   In 2013 Laars started international studio project called DELFINIA. The full-length studio album 'Deep Elevation' by DELFINIA was released in 2019.
   In summer of 2016 Laars joined to Polish power metal band TITANIUM and together they've recorded the album called "Atomic Number 22" which was released by Avalon/Marquee record label, Japan.

   In 2019  Laars joined SYMPHONITY band from Czech Republic. Together they've recorded the album 'Marco Polo: The Metal Soundtrack' which was released on 20th of May 2021 by Limb Music record label, Germany.
    In 2023 Laars started UK based Queen tribute band, called Eternal Star of QUEEN.
    On July 2023, the project DELFINIA was transformed to a band, based in Northampton, UK, and started work on the second album.

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