Jermaine Dupri had threatened to quit his job as president of Virgin Record’s urban music division because he blamed his colleagues for badly marketing the CD of his girlfriend, Janet Jackson. Yesterday, sources said Dupri was in fact out of there. A rep for Virgin CEO Jason Flom had no comment by deadline.

Maybe the fact that Janet Jackson’s album sucked, and bombed had a lot to do with it? Dupri was stupid to quit. It was probably just the excuse he was looking for since he plans to work for Miss Jackson, who is probably still rich.

Remember Janet Jackson’s new CD she just released? It didn’t do well, and although Janet is spending money, her boyfriend appears to be even more upset. Here’s more:

Janet Jackson’s boyfriend, Jermaine Dupri, is blaming his fellow execs at Virgin Records for the sorry sales of her new CD, 20 Y.O.

The New York Daily News’ Rush & Molloy reports that Dupri has threatened to quit his job as president of the Virgin Urban division because he feels label chairman Jason Flom and his team didn’t market Jackson’s correctly.

The CD’s sales plummeted 74% in the second week, dropping from No. 2 to No. 9 on the Nielsen SoundScan chart.

"Jermaine blames Virgin for not getting it enough radio play – not working it," says an insider.

"Jermaine and Jason haven’t gotten along from the start," another source adds.

But one of Flom’s defenders argues, "Jason wants the CD to be a hit as much as anyone, but she didn’t have the goods."

In an effort to resuscitate "20 Y.O.," Dupri is reportedly courting Mariah Carey to record a duet with Jackson for a track that would be added to a new version of the disk.

Dupri has made no secret of his displeasure with the way Virgin handled Jackson’s last album, Damita Jo, telling The New York Times, "They didn’t push the project."

Insiders in Janet Jackson’s camp said she is in talks with Justin Timberlake’s people to appear together in "some sort of big, live show like the Grammys or the Oscars" as the ultimate publicity stunt. The two have not really spoken to each other since the infamous, breast-baring Super Bowl incident in 2004.

A reunion "will help re-boost the sales of their albums," our source added. Jackson just came out with "20 Y.O." and Timberlake with "FutureSex/LoveSounds." Spokespeople for both singers denied any knowledge of a reunion.

Janet’s record sales aren’t doing so great, so she’s willing to bury the hatchet in the bush just to get Justin to team up with her again.