Christina Aguilera Christina Aguilera

Christina Aguilera has canceled her North American summer tour due to inadequate rehearsal time.

Aguilera, 29, has work commitments to her upcoming film, Burlesque, and is currently promoting her fourth studio album, Bionic, due in stores June 8.

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"The singer felt she needed more time to rehearse the show and with less than a month between the album release and tour date, this wasn't possible," Live Nation, the tour's promoter, said in a statement.

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Aguilera's Bionic Tour was set to kick off July 15, but will now be rescheduled for 2011. New tour dates will be announced later this year.Burlesque — the Grammy winner's film debut — hits theaters in November.