Missy Elliot, who hasn’t been seen in public since earlier this summer, was almost unrecognizable as she performed at Alexander Wang’s H&M Collection launch in New York City on Thursday, October 15.

The Is That Your Chick rapper, who is said to have lost a whopping 70 pounds, flaunted her new slim figure as she performed her hit songs Get Ur Freak On, Work It, and Lose Control.

Elliot seemed happier than ever and wore a purple “Wang” baseball hat, black leather pants, and a black pullover as she took the stage.

After her performance, Elliot changed into a black Nike sweatshirt and a baseball cap that read “You Can’t Workout With Us.” She later posted the picture to her personal Twitter page and captioned it by saying, “Just got off stage thanks @ALEXANDERWANGNY and @hmusa for having me perform I enjoyed.”

Just got off stage thanks @ALEXANDERWANGNY and @hmusa for having me perform I enjoyed pic.twitter.com/DXBF2u6KJx

— Missy Elliott (@MissyElliott) October 17, 2014

Elliot was diagnosed with Grave’s disease in 2008, and has been focused on her health and overall well-being since. “You live with it for the rest of your life,” she said of the autoimmune disease.

@MissyElliott en el after party de H&M #AlexanderWangxHM pic.twitter.com/3gV4Tj634f

— H&M Mexico (@hmmexico) October 17, 2014

With the help of medication and radiation treatment, Elliot was able to fight the disease and said she was feeling better than she ever had.

“I feel great,” Elliot said in 2011. “Under my doctor’s supervision, I’ve been off medication for about a year and I’m completely managing the condition thru diet and exercise.”

Elliot revealed on Twitter how she was able to drop the pounds. She admits that it is not easy, but her health comes first. “I do insanity workout to @shauntfitness videos. Sweets/bread/ fried foods is my weakness it’s not easy but health comes 1st:),” she tweeted.

I do insanity workout to @shauntfitness videos. Sweets/bread/ fried foods is my weakness it's not easy but health comes 1st:)

— Missy Elliott (@MissyElliott) October 19, 2014