The legendary singer, 68, spoke with The Telegraph about the increasing sexualisation in pop music, namechecking 'Bang Bang' singer Ariana as among those she fails to understand.
Bette said: "It's always surprising to see someone like Ariana Grande with that silly high voice, a very wholesome voice, slithering around on a couch, looking so ridiculous. I mean, it's silly beyond belief and I don't know who's telling her to do it.
"I wish they'd stop. But it's not my business, I'm not her mother. Or her manager. Maybe they tell them that's what you've got to do. Sex sells. Sex has always sold."
Bette - who was in the UK to launch a new album and announce a new tour - continued to say: "Whatever strictures there were have fallen apart. And now it's whatever you feel like doing you can do.
"I mean, apparently people really like to pretend they're having sex. They really like to slap each other's butts. I mean, don't ask me. It's beyond me. I'm too old. I don't know what the end game is going to be. I don't know where you go from all that sex in your twenties. I don't know how you sustain it."
Bette also offered her advice for young, aspiring female musicians: "Trust your talent. You don't have to make a wh*re out of yourself to get ahead. You really don't."
Bette's first UK tour in 35 years will kick off from July next year, with dates in Birmingham, Manchester, Glasgow, Leeds and London.
It's in support of new album It's The Girls, which is available now.
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