Birmingham band UB40 say the city's striking bin workers and their union should "keep fighting" in their dispute over pay.
It comes as the government and the council urged them to accept a "fair and reasonable offer".
"We're fully on their side," drummer Jimmy Brown told Sky News. "I think they shouldn't give up, they should still be fighting.
"Working people shouldn't have to take a reduction in their incomes, which is what we're talking about here.
"We're talking about people being paid less and it seems to me with prices going up, heating, buying food, inflation and rents going up then people need a decent wage to have a half decent life… keep going boys!"
Workers joined picket lines again on Thursday, with some fearing they could be up to £600 a month worse off if they accept the terms.
"We have total utter support for the bin men and all trade unions," said guitarist Robin Campbell.
"The other side is always going to say they've made a reasonable offer - the point is they're the ones who've messed up, they're the ones who've gone bankrupt, they're the ones now trying to reduce the bin men's wages."
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Lead singer Matt Doyle told Sky News: "It's a shame that what we're seeing is all the images of rats and rubbish building up, that is going to happen inevitably, but we've just got to keep fighting through that."
About 22,000 tonnes of rubbish accumulated on the city's streets after a major incident was declared last month by Birmingham City Council.
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On a visit to the city, local government minister Jim McMahon said the union and local authority should continue to meet in "good faith" and the government felt there was a deal that could be "marshalled around".
He paid tribute to the "hundreds of workers" who have worked "around the clock" to clear the rubbish.
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"As we stand here today, 85% of that accumulated waste has been cleared and the council have a plan in place now to make sure it doesn't accumulate going forward," said Mr McMahon.
Sky News understands talks are not set to resume until next week.
