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Jay-Z is in da (White) House!

Forget Eric B. — it’s Jay-Z for president.

Jay-Z and his wife, Beyoncé, popped into the White House this week, as seen in the cellphone picture above, to visit the president and test out what it feels like to be the first couple in other than the music world.

The White House said the rapper and the singer took a tour of the presidential abode and paid a quick, unscheduled visit to President Obama before heading to the Verizon Center in Washington Wednesday evening to perform at a concert.

“I don’t know where you are, but happy birthday. I just came from the White House. And your pop works there. He said ‘happy birthday,’ ” Jay-Z said in shout-out to a White House staffer’s kid during the concert, the Washington Post reported.

Back in New York, Mayor Bloomberg had his own a brush with Beyoncé yesterday.

The songstress was in her hubby’s home borough of Brooklyn for the opening of the Beyoncé Cosmetology Center at the Phoenix House facility in DUMBO.

The center, funded by Beyoncé, will train recovering drug addicts for careers in the cosmetology trade.

The mayor kept his remarks brief — and rolled his eyes when Brooklyn Borough President Marty Markowitz described the new center as “bootylicious.”

Beyoncé had visited Phoenix House, a rehab facility offering career training, while preparing for her role as heroin-addicted jazz legend Etta James in the 2008 film “Cadillac Records.”

A year later, she and her mother, Tina Knowles, who once ran a hair salon in Houston, came up with the idea of adding cosmetology classes to the facility’s vocational training.

Beyoncé said her mother’s Houston salon doubled as an informal community center where women socialized before leaving looking and feeling beautiful.

“I saw the joy it brought my mother,” she added, her voice breaking as the audience broke into applause.

“I saw women support and inspire each other. The Beyoncé Cosmetology Center was our dream, and today it becomes a reality.”

The singer recently took some political heat after putting on a New Year’s concert at a party thrown in St. Bart’s by terror-backing Libyan dictator Moammar Khadafy’s son, Hannibal, who has a long record of violence against women.

lukas.alpert@nypost.com