Odyssey Blues & Soul Band (Soul, Blues, Jazz, 29 gigs, based: Walthamstow Central)
Off The Rails (Covers & Original, 15 gigs, based: Epsom)
Off The Wall (Covers 60s - present, 34 gigs, based: Truro)
OJ and The Mojo's (Rock / Blues, 1 gig)
Old Dogs R&B Band (Blues Rock, 3 gigs, based: Totnes)
Old Dogz New Trix (Tribute Band, 13 gigs, based: Street)
Old Skool Rox (Rock / Pop, 68 gigs, based: Exeter)
Old skool vibes party disco with DJ Dave Gomm (Rock & Pop Covers, 1 gig)
Ollie Back & Sam On The Fiddle (Pop-Folk, 1 gig, based: West Camel)
Olly Must Tribute Act (Covers, 1 gig)
OM-Open Mic Nights (Open Mic, 7 gigs, based: Seaton)
OMJ (Rock and/or Blues and/or Pop, 9 gigs, based: Hertford)
One Eyed Cats (Rhythm & Blues, 22 gigs, based: Peterborough)
One Love (Covers - various, 2 gigs, based: Margate)
One Night Of Queen (Tribute Band, 1 gig)
One Umbrella Live Presents... (Music Promoter, 93 gigs, based: Honiton)
Ooh Err, The (Rock / Blues, 1 gig, based: Richmond)
Open Mic (Open Mic, 56 gigs)
Open Mic - Wednesday Music Club (Jam Session, 13 gigs)
Open Mic - with The Cherry Valentines (Various, 23 gigs, based: Chesham)
Open Mic - with The Weathertop Preachers (Various, 24 gigs, based: Chalfont St Giles)
Open Mic Night With Barry Kool (Pop / Rock / Jazz / Blues, 7 gigs, based: Watchet)
Open Mic Night with Pete Sutton (Open Mic, 12 gigs, based: St Albans)
Open Mic with Go tell Alice (Pop / Rock / Jazz / Blues, 94 gigs, based: Newton Abbot)
Open Mic/Jam (Open Mic, 10 gigs)
Opium (Covers, 3 gigs, based: Plymouth)
Original 'Rubettes' Featuring John Richardson, Bill, The (Glam Rock, 1 gig)
Originals, The (Modern Covers, 2 gigs, based: Bracknell)
Oscar Stevens (70s, 80s and 90s Covers, 1 gig, based: Borehamwood)
Ostinato (Covers 80s - present, 1 gig)
Our Friends Electric (Other, 1 gig)
Out Of The Blue (Covers - various, 21 gigs, based: Boxmoor)
Out Of The Blues (60s and 70s Rock'n'Roll / Blues, 1 gig)
Out Of The Box (Rock / Pop, 2 gigs, based: Torbay)
Out to Lunch (Rock & Roll, 9 gigs, based: Enfield)
Overtures, The (60s Covers, 1 gig)
Oye Santana (Latin, 1 gig)
Total 37