Janet Jackson</a> is not wasting any time singer her bitter split from baby daddy</a> Wissam Al Mana.<br /><br />The singer is already “back together” with ex Jermaine Dupri</a>!<br /><br />According to Us Weekly, “They were cuddled up and holding hands,” during her State of the World tour after-party in Atlanta this Sunday.<br /><br />Their shocking reunion comes after Jackson filed for divorce from her allegedly abusive billionaire hubby, after a child and five years of marriage.<br /><br />As readers know, the star dated Dupri, 45, for seven years before hooking up with Al Mana, 42.<br /><br />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.<br /><br />“They are 100 percent back together and in love,” said a source to Us Weekly, speaking of Jackson, 51, and Dupri’s rekindled romance.<br /><br />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.”