Members of the 1960s pop group The Hollies have asked the High Court to jail one of their founder members.
The Hollies scored with hits such as I'm Alive
They claimed bass player Eric Haydock has flouted a court order made in 1998 not to play under their name.
They also claim that Peter Hughes plays with Mr Haydock in a group calling itself Eric Haydock's Hollies and music manager James Cozens helps set up gigs.
Mr Haydock formed the group in Manchester with Allan Clarke and Graham Nash, but left in 1966.
Stephen Glover QC, representing the band, told Mr Justice Etherton: "The view of the complainants is that British prisons are full enough and they wish no imprisonment to occur to any of the defendants but they know of no other means of stopping this."
The group said the injunction only allows Mr Haydock to describe himself as ex-Hollies or former Hollies bass player.
They said the three had breached the injunction on many occasions, including a tour of Australia in 1999, a concert in Denmark in 2004 and at shows in Swindon, Bognor Regis, Skegness and Newbury.
The Hollies - who topped the charts with hits like Here I Go Again and I'm Alive - were signed to EMI in 1963.
They had been spotted playing at Liverpool's famous Cavern Club, where the Beatles made their name.
The only original members of The Hollies' current line up are guitarist Tony Hicks and drummer Bobby Elliott.
The case continues.