Janet Jackson is not wasting any time singer her bitter split from baby daddy Wissam Al Mana. As Breaking Celebrity News has learned, the singer is already "back together" with ex Jermaine Dupri!

According to Us Weekly, "They were cuddled up and holding hands," during her State of the World tour after-party in Atlanta this Sunday.

Their shocking reunion comes after Jackson filed for divorce from her allegedly abusive billionaire hubby, after a child and five years of marriage.

As Breaking Celebrity News readers know, the star dated Dupri, 45, for seven years before hooking up with Al Mana, 42. Even as she battles her $250 million divorce from the Qatari business magnate, it seems Jackson's still made time for her on-again hip hop beau.

"They are 100 percent back together and in love," said a source to Us Weekly, speaking of Jackson, 51, and Dupri's rekindled romance.

The publication's source continued, saying that Dupri reached out to Jackson after she heard of her tumultuous relationship with Al Mana: "They are getting to know each other all over again."