i would call them sell outs of they endorsed something, coke or pepsi etc.
unfortunatly a lot of bands dont have control over their own music so it can be used by people to do what they want. not all bands/musicians true but more than i thought.
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Sarcasm[A] is stating the opposite of an intended meaning especially in order to sneeringly, slyly, jest or mock a person, situation or thing
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