The Rainbow said it empathised with some residents
A Birmingham late-night venue could be told to quieten down after complaints by people over loud music.
The city council said loud noise had been coming from The Rainbow pub, in Digbeth, and said it was deciding what action to take.
A group on Facebook which is backing the pub has nearly 13,000 members.
Pub bosses said they would have to put a roof over the courtyard to reduce noise levels but urged people moving to the area "to do their homework".
They added that "you can't have a rock venue that doesn't rock".
The council said two of the four complaints came from people in the nearby recently-built Abacus apartments.
The present owners of the pub said the venue had been operating in its current form for at least seven years.
Joss Stone, The Prodigy, Ladyhawke, 808 State and the Birmingham band The Twang have all played there.
The council said it would decide what action to take this week.
It added it had "worked closely" with the High Street venue after first receiving a complaint in 2007.
It said that after officials experienced loud noise there earlier this year, the council produced a written agreement with the Rainbow that the venue would not cause further problems, rather than taking legal action.
However, it said that it would review the situation if there were future problems. The council said there had since been further complaints.
Mark Wolstencroft, environmental protection team manager, said: "We could serve a noise abatement notice, but that need not close it down.
"The notice would simply specify 'abate the noise nuisance' and the premises have the option to do whatever they feel appropriate.
"If then any further nuisances were witnessed, they would be in breach of the notice and that could lead to prosecution in the courts.
"We don't want to close The Rainbow down, but we've got to ensure the noise from the pub is reasonable."
Landlord of The Rainbow Kent Davis said he empathised with some residents.
But he added: "We shouldn't be paying the financial price which we're going to have to.
"We're going to have to put a roof on our courtyard area.
"There isn't any sort of simple solution to the issue.
"There's an element to which anyone who's moving to the area needs to be encouraged to obviously do their sort of homework.
"They are moving not only to city centre apartments, but also slap bang in the middle of a vibrant entertainment area."