Not the first celebrity to do so- including a lot of them who ought to know better. Such as Reba McEntire, Steve Earle, and others. It's a crowded bandwagon, slippery with drool. (And I like country music.)
I mean, I can understand someone coming from the cultural desert of NYC or Chicago making fools of themselves by outing themselves as anti-liberty bigots, but a lot of the others didn't have such a backward upbringing and should have been exposed to rationality and reason. Exposure doesn't mean it'll stick.
I guess it takes a "certain kind" to become a celebrity- which is why I ain't one.
I suppose celebrities embrace anti-gun and anti-liberty positions because they imagine it makes them look enlightened. It doesn't. Not to anyone beyond the ignorami they are trying to impress, anyway.