Superstar Janet Jackson has reportedly broken off a four-year relationship with boyfriend and business partner Jermaine Dupri.

According to the National Enquirer the duo has been fighting because of the way Dupri has been managing her career.

After the highly publicized incident at the 2004 Superbowl Halftime Show, the 43-year-old entertainer has had three albums, none of which proved the success of previous projects.

Just this past year Jackson canceled several U.S. tour dates citing a case of Vertigo, then canceled dates again, this time saying the state of the economy was to blame. There were also rumors circulating the singer was expecting a baby.

Reports of the breakup come on the heels of the announcement Jackson will again join the cast for the Tyler Perry motion picture tentatively titled "Why Did I Get Married Too?", the sequel to the 2007 movie "Why Did I Get Married." The singer has also reportedly been in talks with longtime friends and producers Jimmy Jam and Terry Lewis for a new album.