"At her request, the record label has agreed to dissolve their working relationship," the singer's rep said in a statement to PEOPLE. "Now more than 20 years after the release of her iconic album, Control, Janet will have autonomy over her career, without the restrictions of a label system."
A rep for Island Records had no comment.
Jackson, 42, first discussed her label woes in June, when she told the hip hop Web site SOHH.com, "I'm trying to figure out a way to say this, but just to say it and to be quite honest, they just stopped all promotion whatsoever on the album, so I don't think you're going to hear another single off this album."
Concert Tour ContinuesAt the time, an Island Def Jam spokesperson told Billboard, "Unfortunately, we haven't experienced the results we would have liked with this new album. But we respect and support Janet."
Jackson was signed to Island Records in July 2007, and released her album Discipline, which debuted at No. 1, on the label in February.
Despite the break with Island, Jackson will continue to perform her Rock Witchu tour across North America.