Beyoncé made her first public appearance after she gave birth to baby Blue Ivy Carter

Beyoncé made her first public appearance after she gave birth to her baby daughter last month in a simply striking red dress to showcase her enviable figure without a hint of an unwanted lump or bump.

Beyoncé, who gave birth to the couple’s first child Blue Ivy Carter last month on January 7, embraced her voluptuous silhouette and smiled proudly as she paraded her curves.

She made her first public appearance last night to celebrate Jay-Z’s two anticipated shows at Carnegie Hall to benefit United Way of New York City and The Shawn Carter Scholarship Foundation.

Beyoncé opted for an elegant Alice Temperly frock, teamed with Ofira & Lorraine Schwartz jewels, a quirky Alexander McQueen clutch bag and a pair of sparkly Christian Louboutin heels.

Her straightened hair, which was perfectly groomed and primped but without being overstyled with products, hung loosely over her shoulders as a pair of large gold hoop earrings peeped through.

The singer walked with a confident stride and a sexy swagger, proving she hasn’t lost any of her girl power since becoming a mother.

Jay-Z, 42, took to the stage in a bow tie and dinner jacket, flanked by a 36-piece orchestra.

Not only did he deliver with songs Public Service Announcement, Thank You and Most Kingz, Jay-Z was also joined by Alicia Keys for a rendition of their epic track Empire State of Mind.

Alicia Keys focused on her vocals instead of her looks by slipping into an androgynous suit and scraping her hair back into a bun, adding a splash of femininity with large drop earrings.

Celebrity guest rapper Nas also took to the stage with the new father to perform N.Y. State of Mind, before launching into his own hit If I Ruled the World.

Both musicians seemed to ignore the fact they were indoors after sunset, both donning their obligatory celebrity shades.

Jay-Z couldn’t resist a gushy dedication to his daughter, telling the audience: “Put a hand in the air for Blue,” before belting out Glory, which he wrote especially for the one-month-old.

For his encore, Jay-Z ditched the suited and booted look for hip-hop attire, including a black T-shirt and gold chain, signing off with Dead Presidents and Money Ain’t A Thang in the audience box.

Jay-Z also told the sea of admirers he had “a beautiful time”, praising the crowd for looking “exquisite”.

A host of famous faces showed their support, with models Jessica White and Brookyln Decker turning up, alongside the legendary Liza Minnelli in an oversized Cruella De Vil-inspired winter coat.