Gregory began playing guitar aged seven and moved to London in 1969 with bass guitarist Steve Emery.
After it became clear that Fleetwood himself was not going to be involved, audiences quickly realised that this hastily assembled group was not the band they had paid to see, and the tour collapsed after a few weeks.
Gregory recorded a solo album Composition on the UK Hot Wax Records label (not the US label of the same name) in 1978, and subsequently played on ex-Fleetwood Mac guitarist Danny Kirwan's final album Hello There Big Boy!
[7] Gregory and Gantry re-united briefly in 1982 and recorded material with Sweet drummer Mick Tucker and bass player Nigel Ross-Scott but nothing was officially released.
He is currently Director of Client Services at the charity and at its subsidiary The Spider Project, and has spoken at major conferences on addiction.