Paris & Destinee Score Opening Slot on Britney Spears World Tour

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Paris and Destinee at the 2011 Teen Choice Awards

The sister duo, who doubled as backup singers on season 10 of "American Idol," will announce the news on the red carpet at Sunday's MTV Video Music Awards.

Sisters Paris and Destinee Monroe have scored the opening slot to Britney Spears' Femme Fatale tour, which continues to Russia and Europe starting on Sept. 22. The U.S. trek featured Nicki Minaj and Jersey Shore's Pauly D. The European leg has Joe Jonas on the bill. 

The pop duo known as Paris & Destinee have already warmed-up for the tour. "We did six dates," the girls told The Hollywood Reporter at Perez Hilton's One Night in Los Angeles VMA pre-party on Saturday. "We're so excited for the rest of the tour!" Paris & Destinee plan to break the news officially at today MTV Video Music Awards. 

It won't be the first time the girls have performed on a world stage. As the group the Clique Girlz, signed in 2008 to Universal Music by producer Ron Fair, Paris and Destinee got to play in Japan and Canada opening for the likes of Jonas Bros. and Backstreet Boys.   

More recently, Paris & Destinee served as regular backup singers for season 10 of American Idol, accompanying favorites such as Paul McDonald, Lauren Alaina and winner Scotty McCreery

Back in May, Destinee explained how they made it to the show. "We've always been fans of American Idol," she told THR at the time. "When [Interscope Geffen A&M chairman] Jimmy Iovine took over the show, he said, 'I really want you guys to be a part of this.' " Added Paris: "We were like, 'How could we turn it down?' It’s the biggest stage in the world."