I never thought I'd say this, but Pink actually looks HOT wearing her husband's undies!

The singer donned the hot pink hipsters for a sexy photo shoot promoting Carey's new line of Hart & Huntington clothing line (a spinoff of his tattoo company).

We had no idea Carey was into women's underpants, but if he had stripped to his skivvies too, they'd be the rock n roll Posh & Becks!