Simon Lewicki, also known as Groove Terminator and GT, is an Australian electronic music artist.

Originally a hip-hop DJ, he eventually began spinning house music. He was featured in the 2000 Australian edition of Ministry of Sound's Club Nation series, as well as several other Ministry of Sound compilations. His song "Here Comes Another One" became the theme of the popular Australian (and worldwide) reality TV-show 'The Block' and had featured previously in the cult spoof-slasher film, Cut (1999).