She’s one hot mama! The superstar stepped out revealing a flat tummy just 30 days after the birth of baby Blue Ivy!

Beyonce gave birth to her first child Blue Ivy on Jan. 7, and she’s already in fantastic shape! The singer stepped out in her first public appearance since the birth to celebrate hubby Jay-Z‘s shows at Carnegie Hall to benefit United Way of New York City and The Shawn Carter Scholarship Foundation, according to The Daily Mail.

Wearing a curve-hugging red Alice Temperley cocktail dress, Beyonce was ready for a night out.

During the concert, Jay-Z gushed to the audience about his baby girl. “Put a hand in the air for Blue,” he said before singing “Glory,” the song he wrote for her.

What do YOU think of Beyonce’s post-baby style? Can you believe she lost the baby weight so fast!?

-Anna Moeslein

More Beyonce:

1. Beyonce Hires Six Nannies To Pamper Daughter Blue Ivy
2. Oprah Is The Godmother Of Beyonce & Jay-Z’s Baby Blue Ivy — New Report
3. Kelly Rowland: Beyonce & Jay-Z’s Baby Blue Ivy Is Already ‘Musical’