Victoria Beckham VBECKHAMJEANS060405_rr.jpgVictoria, summer '05, promoting R&R at Kitson

Victoria Beckham is suing the label that produced her Rock & Republic jeans -- the Daily Mail UK suggests Posh may be claiming "loss of earnings" to the tune of about $100 million!

Beckham signed on with R&R in September 2004 but split with her fashion partners two years later, amid rumors of a rift between her and the designer.

Then, Faser Ross, owner of Kitson, claimed last month that Vic wasn't in the store often enough to promote her clothing line.

Legal papers have not yet been made public but it seems all is not rockin' in fashionville ...