Because Miley is from Tennessee... Home of country music... Her dad is a country music Superstar... Her godmother is THE Dolly Parton. AND Miley has been singing country music her whole life.
also, the reason she has to market so much is because she was blackballed by country radio for being openly supportive of the lgbtq+ community and open about her weed use. so if you wanna support a country artist that’s not conservative, here you go!