Dave Thompson was born in Sydney, Australia but has lived in North America for the past 6 years. Having been brought up in a less than musical family, (his step father was in the NSW Police Band) he started playing the guitar, bass and keyboards simultaneously around the time he was 15 years old. He started playing professionally at the age of 16 (in a Top 40 band that toured Australia) and starting recording in studios as a session player at 17.

As a multi-instrumentalist playing guitars, bass and keys, Dave has performed over 2,000 gigs touring in North America, Australia and Asia, playing with such diverse acts as the Australian Pink Floyd show, the Australian U2 show and countless top/cover bands. He has toured and played with members of Savage Garden, Jeff Martin from the Tea Party, and worked with the producers of the Mathew Good Band and Edwin as a writer/programmer/musician to name a few.

He joined Roadrunner/Universal rock band High Holy Days, as bass player in the fall of 2004 and moved to guitar in July 2005, while still working with his own band Halfahalo where he writes, plays guitar and sings. Still a member of High Holy Days, Dave has remixed some amazing artists ranging from Britney Spears, Justin Timberlake, Chris Vrenna (NIN), Whitney Houston etc....He also recently released his first record with Halfahalo titled "The Thrashing Floor" where he produces, records, mixes, writes, sings, and performs just about everything on the record.

Aside from being a studio producer/remixer with his own company Digital Underdog (what he calls his "day job"), he's a member of Halfahalo, High Holy Days and musical director/co-writer/performer/producer for Leslie Carter , (sister of Nick and Aaron Carter)

As a producer, Dave just recently finished co-writing and producing with Leslie Carter and produced the recent High Holy Days single, The River Of Styx, for release in North America. Dave also creates theme music for TV shows seen across North America on Sportsnet, AIN and FOX.

Dave endorses Music Man & Spector Basses and uses Levy's straps. He is also a Gibson artist playing Gibson guitars.