[1] Hopkins was born in Dublin and was brought up in Clane, County Kildare in a musical family (his father, Des being a jazz drummer).

Halite began as a solo project for Graham, who debuted with the critically acclaimed first album "Head On" with Warner Bros. Records in 2003.

Halite played numerous shows over the following two years, including opening the Slane Concert in 2003 for Red Hot Chili Peppers and Foo Fighters.

He drummed on their self-titled debut album released in 2006 but left the band immediately after their appearance at Electric Picnic 2008.

Hopkins spent the early part of 2007 stepping in as drummer for Snow Patrol on their European, Australian, New Zealand and American tours.

Hopkins also played on the soundtrack to the Irish Oscar-winning musical film Once which was written and directed by John Carney.

Hopkins toured with The Swell Season, which features Glen Hansard, Markéta Irglová and members of The Frames.

Hopkins has played drums on numerous albums, both Irish and internationally, including with The Frames, The Swell Season, David Kitt, Mundy, The Reindeer Section, Josh Ritter, Jape, The Pale and Pugwash amongst many others.