Jackson and Dupri break up

LOS ANGELES, July 17 (UPI) -- U.S. singer Janet Jackson, who has been mourning the death of her brother Michael, has broken up with Jermaine Dupri after seven years of dating.

"His friends are telling people it's over," a source told Usmagazine.com about the music executive.

"They have been moving in different directions for a while," another insider added.

"You shouldn't mix business with pleasure," a mutual friend of the former couple told the magazine, referring to how Dupri produced several songs on Jackson's latest albums. "Janet felt their lives were too crossed and they should have kept things sepa­rate."