Sluts of Trust are a two-piece rock outfit from Glasgow, Scotland, originally comprising John McFarlane (guitar, vocals) and Anthony O'Donnell (drums). O'Donnell was later replaced on drums by Roo Harris.
Sluts of Trust were formed in the summer of 2002 by John McFarlane and Anthony O'Donnell, after a wild three-day party, which became known as the Pirate Weekend. McFarlane and O'Donnell had first met as teenagers at Scottish Youth Theatre's Summer Festival in 1995. In the intervening years, both had begun aborted courses at Glasgow University and Cardonald College respectively, and had enjoyed limited success with separate musical projects. O'Donnell in Crambo, and in a band with fellow SYT graduate and future Harry Potter actor Sean Biggerstaff, and McFarlane had released a solo recording entitled "Broken Alarm Clock" on the Glasgow Queen Margaret Union NorthPark label compilation Unplugged, which he also performed on the BBC television programme The Beat Room. Having recently disbanded his latest group Tungsten Crust, McFarlane had been writing songs for a change of direction. He invited O'Donnell to drum with him and very quickly they blended to create a dynamic new sound. The band had originally been envisaged as a trio, but stayed as a guitar/drums duo after their prospective bass player failed to turn up to their first rehearsal.