Lizzo is putting it all out there -- in more ways than one.

On Friday, the singer dropped her new song "Don't Make Me Love U" ... and looked good as hell as she bares both her body and soul in the music video!

In the visual for the emotional, '80s-inspired pop ballad, the singer is rocking lingerie and a blonde bob while she confronts her former self.

Lizzo seems to cycle through every emotion -- crying, yelling, straddling, and twerking on her double. Eventually, she drips down to her birthday suit, hugging her past self in a touching tribute to her "Cuz I Love You" album art.

The music video is equally sexy and sentimental ... proving Lizzo is still 100% that bitch!