BEYONCE TRADES DIAPER DUTY FOR THE RED CARPET!

Less than two weeks after delivering baby Blue Ivy, Beyoncé is trading diaper duty for the red carpet.

Queen B will make her first post-baby appearance at the grand reopening of hubby Jay-Zs 40/40 Club Wednesday night, a source close to the crooning couple told the Daily News.

All eyes will be on the shapely singer's motherly silhouette as stars including Alex Rodriguez, CC Sabathia, Victor Cruz, Swizz Beatz and New York Knick Baron Davis offer their congratulations.

The Manhattan clubs new $10 million renovation includes four gargantuan, state-of-the-art 165-inch video screens and golden bats lining the walls of banquettes.

"I wanted to retain the feel of a clubhouse, a relaxed place to interact with friends," Jay-Z told The News.

Hova's new hideaway is open to the public, but VIPs can pay for $1,000 memberships with preferred access to private rooms.

In a Daily News exclusive, Jay-Z scoffed at a recent report he wrote a poem to his newborn daughter vowing to drop the word "b----” from his vocabulary.

"That poem and story are fake," Jay-Z, whose real name is Shawn Carter, revealed.

Meanwhile, local clothing designer Joseph Mbeh is trying to make a pile of green off baby Blue.

Mbeh, 35, has filed a trademark application for the name "Blue Ivy Carter NYC" for a line of childrens clothes, a U.S. Patent and Trademark application shows.

"We have a line of clothing which is an elite brand," Mbeh told The News when pressed about the application outside his Manhattan office Tuesday.

He skirted questions about his apparent lack of connection to Jay-Z’s family, rushing back inside his office with a stern, No comment.

Mbeh's $325 application, first reported by TheSmokingGun.com, has yet to be approved.

"I would not make money off a baby like that. Its going a bit overboard," Cassie Paylor, 75, one of Mbeh's Jersey City neighbors, told The News. "Its up to the little girl to use her name when she grows up."

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