Photo: Neilson Barnard/Getty Images

It wasn’t that long ago that Jessica Simpson was getting flack for being bigger than normal—she was also pregnant. But not only has she gotten her figure back since then, she’s also making money off of it. Talk about a comeback!

Simpson posted an incredible photo on Instagram of herself posing with weights wearing tight, extra-short shorts and a low-back shirt—even just with a quick glance, it’s hard not to notice her super toned lower body. Her fans definitely noticed, with more than 14,000 followers clicking the “Like” button in just the first hour after Simpson put it up.

The photo was posted to promote her new line of workout wear, The Warm Up, as part of her growing fashion empire, the Jessica Simpson Collection. The new line is now available for purchase through Macy’s and caters to a range of different body types.

If celebrity-backed workout gear is your thing, here are a few other stars who have come out with their own fitness clothing collections:

  • Carrie Underwood: The country singer’s line is called Calia and includes everything from trendy sweaters to fancy water bottles.
  • Kate Hudson: The actress’ Fabletics line offers individual pieces for purchase or full outfit recommendations.
  • Heidi Klum: The supermodel is an ambassador for New Balance and has her own collection of shoes and clothing under the brand.
  • Brooke Burke-Charvet: The television personality developed her brand, Caelum, to appeal to the “modern athletic woman.” It includes pieces that are stylish and functional enough that they can just as easily be worn at the gym or while out running errands.