Of course. One of the best things about scene music: all liberal, all the time.
I don't know if your comment is to be taken ironically, but some musicians are extremely conservative, such as Gene Simmons or Pat Boone.
Many Most musicians, on the other hand, are socially liberal, while being fiscally moderate or even conservative at the same time, such as Adele, TLC, 50 Cent, LL Cool J or Madonna.
True lefties among singers (like Cher or Michael Jackson) are a rarity.
Those are not regular musicians, but music stars. A small sub-sample among musicians, who are generally a low income group and quite left wing.
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