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The Russian-Azeri billionaire whose son is tied to the escalating Donald Trump Jr. email scandal is in contract to sell his Alpine, NJ mansion, sources told The Post.

Aras Agalarov bought an $8 million mansion at 159 Anderson Avenue in 2007.

Agalarov’s son, a pop star named Emin described as a Russian “Michael Bublé,” has made headlines this week for asking his publicist, Rob Goldstone, to set up a Trump Tower meeting in June 2016 that was attended by Trump Jr., his dad’s then-campaign manager Paul Manafort, current White House adviser Jared Kushner and Russian lawyer Natalia Veselnitskaya.

Emin also owns a New Jersey home, which he bought with his father for $3 million in 2008. At the time, he was married to Leyla Agalarova, the daughter of Azerbaijan’s dictator, Ilham Aliyev. The couple announced their divorce on Instagram in 2015, after 9 years of marriage.

Aras Agalarov listed his $8 million home for the low price of $6.98 million last month — and included the furniture in the sale, according to the listing.

A contract was signed on Tuesday, as Agalarov and his son’s relationship with the Trumps made headlines.

“It could be a coincidence,” a source said. “Alpine always sells fast if the product is priced right.”

Listing broker David Axelrad, of Prominent Properties Sotheby’s International Realty, did not return calls.

Agalarov partnered with Trump in 2013 to bring the Miss Universe Pageant to Moscow. At the time, Agalarov also signed a letter of intent to build a Trump Tower in Moscow. As a gesture of good faith, Trump even made a guest appearance in one of Emin’s videos.

The seven bedroom, ten bathroom home at 159 Anderson Avenue in Alpine sits on 2.5 acres. Built in 2001, the home features a dramatic double bridal staircase and a great room with oversized windows overlooking a landscaped yard and fountain. It also boasts a large family room, a library, vaulted ceilings, fireplaces, a formal dining room, a chef’s kitchen with a butler’s pantry, and a wet bar with a built-in aquarium. There’s also a fully finished basement with a recreation room, a media room, a gym with a sauna, a wine cellar and an extra bedroom.

“It’s really private, hidden away, with a 400 foot driveway,” a source said.

Emin’s home, at 98 Anderson Avenue, has been on the market for $2.9 million for more than a year.

The stately brick colonial is gorgeous — but Emin is never there, the source said.

“When Emin comes to New York, he stays in Manhattan, like his father, and the house remains empty,” the source said.

In May, Emin performed at the Rose Theater at Jazz at Lincoln Center for one night. Tickets were $35 to $75.

Emin’s 10,000 square foot home has six bedrooms and seven and a half bathrooms. Built in 2007, it sits on .77 acres. It features a two-story foyer with its own bridal staircase, a great room with floor to ceiling windows and French doors that lead to the patio and backyard.

There’s also a chef’s kitchen and a finished basement with a recreation room, a “full bar,” a home theater, wine cellar and gym. The listing broker is Emin’s sister Sheila Agalarova, who is a broker at Prominent Properties’ Sotheby’s International Realty.