Beyonce Wears Shorts, Almost No Makeup at Broadway Show

Da'Vine Joy Randolph, Richard Fleeshman, Beyonce Knowles, Caissie Levy and Bryce Pinkham pose backstage at the hit musical "Ghost" on Broadway on May 12, 2012 in New York City. Credit: Bruce Glikas/FilmMagic

Beyonce hits Broadway!

The "Run the World (Girls)" singer, 30, attended a performance of GHOST The Musical Saturday night, where she greeted the cast post-show--and showed off her signature, effortlessly chic new mom style.

Clad in a striped button-down and black shorts, Beyonce--who gave birth to daughter Blue Ivy January 7--sported minimal makeup and slicked her hair back into sophisticated top-knot.

Since welcoming her first child with hubby Jay-Z, the super-stylish Grammy winner has continued to stun each time she steps out--often in curve-hugging ensembles that show off her amazing, post-baby figure.

Beyonce has been working hard to shed the baby-weight in time for a May 25 Atlantic City gig--her first show since becoming a mom. Her trainer Marco Borges tells Us Weekly the singer is in the gym five days a week, focusing on "cardio and plyometric moves like lunges and jumps on and off a bench," he reveals.

Her consistency is paying off, says a pal. Thanks to her hard work, Beyonce is "loving her body!" the source tells Us.