N-Trance

N-Trance ( EN-trahns) are a British electronic music group who were formed by Kevin O'Toole and Dale Longworth, in 1990. The group has sold over 5 million records worldwide and some of their hit singles include "Set You Free", "Forever", as well as covers of the popular 1970s disco songs "Stayin' Alive", "D.I.S.C.O." and "Da Ya Think I'm Sexy?".

source: Wikipedia