Beyonce hit the town for a second night in a row last night (Feb. 7) and wowed once again. The glowing new mom sparkled in a glittery, sequined navy number at Jay-Z‘s encore performance at Carnegie Hall. She even paid tribute to Blue Ivy with her blue mani, pedi and accessories.

Even more dazzling than Beyonce’s dress? Her smokin’ bod! How is she shedding her post-partum pounds?

Hollywood Life reports that personal trainer Marco Borges has temporarily moved into Bey and Jay-Z’s home to get her back to her bootylicious form.

Beyonce and Borges work out twice a day, two hours per session. A source says, “Beyonce and Marco are up at 5AM for a two-hour workout, and they do it again at 5PM They do a mix of cardio, Pilates, plyometrics, yoga and, of course, dance.”

The source also revealed that Beyonce’s been dieting. She eats “Six tiny high-protein meals a day,” the source said. “She’s living on protein shakes, egg-white omelets, pineapple chunks and lots of ice cold water.”

Based on her whittled waistline, it’s working! The source says Bey’s lost 14 pounds so far, with a goal weight of 128 pounds by early March. “She’s exhausted but totally dedicated,” the source said. Makes sense to us — Bey’s always been one of the hardest working women in the biz! “Beyonce’s vowed to have a better body than ever before … And she’s a woman of her word.”