He joined German underground metal act, Court Jester in 1996, with whom he recorded the album Forced II Believe, which received favorable reviews in the European press.

The song was based on the melody of "Many Rivers to Cross" by Jimmy Cliff, and sung in the Sinhala language in a hard rock and metal style.

[12] Somapala joined a German progressive power metal band, Avalon, as front man and lead singer.

During the summer of 2000, Somapala participated on Avalon's 4th Album, Eurasia, under the direction of Sascha Paeth, known for his work with bands such as Rhapsody of Fire, Kamelot, and Heaven's Gate.

[14] In 2002, Somapala contributed "Greenland's Theme" for his alma mater Isipathana College's International Rugby Championships in Sri Lanka.

They intended to form a band which created hard and aggressive riffs with the sensitivity of classical music combined with memorable vocals and choruses.

Only two of the original members, Somapala and Pelisson, stayed on; Christian Muenzer (Majesty, Necrophagist) joined the band as lead guitarist.

[17] The band's line-up changed again in 2009, with guitarists Nicklaus Bergen and Oliver Marmann, and drummer Michael Stein being added to replace the previous musicians.

Their debut album, Revolution Rising, was recorded in studios in France, Italy and Germany and was mixed and mastered by Markus Teske (of Vanden Plas, Mob Rules, Dominici, Symphony X and Red Circuit).

[21] Somapala has worked with Chandran Ratnam, Asoka Handagama, and other notable filmmakers, winning international & national awards.

[23] Somapala performed as a solo singer at the 2009 & 2011 ‘Fete La Musique’ Concerts with the Luxembourg Philharmonic Orchestra at Rock Am Knuedler with conductor Professor Gast Waltzing.