He signed with Central Station Records in 1998, and released the first of many compilations titled Kickin Hard, under the alias 'Alex K'.

[7] Karbouris moved from his hometown Sydney, Australia to Liverpool, UK in 2004, and signed a record deal with Universal/AATW.

He has written and worked with many writers and producers, and had writing credits alongside Annie Lennox with his track "Angel in my heart".

His song "My Time", was featured and looped in the freeway chase scene of the movie Hancock in 2008.

He has remixed numerous mainstream and underground artists, including the Black Eyed Peas, Rihanna, Snoop Dogg, Lady Gaga, Nicole Scherzinger, Slinkee Minx and David Guetta.