Beyoncé is known for her bold voice and bolder style, but the celebrity is also well-known for her figure. The 36-year-old brings her dedication from the stage to the gym too, usually styled in some of her own athleisure designs.

You might wonder how this busy businesswoman and mom keeps up her stamina and, more specifically, how she maintains her hourglass curves.

Mark Jenkins, a celebrity fitness trainer who’s worked with Beyoncé as well as artists like P.Diddy and Busta Rhymes, says getting an hourglass shape like Beyoncé’s has less to do with abdominal work than you think.

According to Jenkins, one of the trainers who has partnered with the new Burner Fitness app, the best way to create that hourglass figure is to strengthen, widen, and define, your shoulders and back.

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