Pregnant Beyonce Turns 30!

Credit: Jon Kopaloff/FilmMagic

Let the celebrations continue for Beyonce Knowles!

The Grammy-winning singer and actress fetes her 30th birthday on Sunday -- and she's already gotten the best gift ever.

In late June, the "Love on Top" singer teasingly told CNN's Piers Morgan: "I always said I would have a baby at 30."

And what Beyonce wants, Beyonce gets! In an instantly iconic moment, the superstar confirmed her pregnancy onstage at last Sunday's MTV Video Music Awards, unbuttoning her sequined jacket at the end of a performance to rub her baby bump with a joyous, mischievous smile.

"She wasn't going to announce it, but she is so excited she couldn't hold it in," a pal says.

It's the first child for Beyonce and Jay-Z, her husband of three years. Her rapper-mogul man, 41 (real name: Shawn Carter) couldn't be more thrilled, insiders told Us

"He wanted this to badly," the pal says. To that end, the hip-hop legend "has been so supportive, rubbing her feet, making sure she's okay."

Beyonce's Destiny's Child mate and lifelong friend Kelly Rowland added: "Beyonce is happy, and Jay is happy. That is all that counts!"