Wearing a catsuit adorned with Roy Lichtenstein cartoons and comic-prints, Cher sang Want U Back and With Ur Love, and apparently also Superhero, End Up Here and Playa Boi, but we can't find the videos of them.
"Can't wait for tonight," Cher tweeted G-A-Y promoter Jeremy Joseph.
"Let's put on a show!"
Pic: Twitter / Jeremy Joseph
Cher danced about in her glittery ankle boots and sang into her pink microphone for a sold out crowd.
Check out a slightly dodgy recording (but you get the gist) of her singing With Ur Love.
Have you seen Cher live yet?