As reported by AOL Music, Beyonce stunned when she showed off her impossibly tiny waist in a figure-hugging dress just 10 weeks after back in January! This week, three months post-pregnancy, new photos have emerged of Bey already back in a bathing suit. So how is she shedding the reported 40 pounds of baby weight so quickly?

According to In Touch Weekly, Queen B has turned her personal trainer Marco Borges into a live-in, on-call fitness guru -- moving him into her New York apartment! But that's not even Bey's biggest secret weapon in the fight to shed the baby weight in time for her Memorial Day weekend comeback concerts. Apparently hubby Jay-Z has played a huge role in helping her stay on track with her diet and exercise program.

"Jay-Z has been hitting the gym with her and staying healthy, too," a source told the magazine. When it comes to her combination workouts of cardio and strength training, "consistency is key." Apparently the singer is super determined and refuses to "settle for anything less" than her famous pre-baby figure. You go, Bey!