Demi Lovato Turns 34! Hot Shots, 'Sorry Not Sorry!'

Demi Lovato always turns up the temps, but today's extra fiery and fierce 'cuz it's her 34th birthday, and we've got a sexy stack of snaps to light up the celebration!

Dive into her hot shots gallery 'cuz "payback is a bad b*tch and baby, Demi's the baddest!"

A sunny summer selfie for the win! Check out Lovato livin' it up in a stringy bikini ... Woof!