Pop Crunch — Christina Aguilera North American summer tour has been cancelled indefinitely to give the singer more time to rehearse for the performances.After a three year hiatus, the “Beautiful” hitmaker returns to the music scene with a new album, Bionic, d... more info

BBC News - UK — US pop star Christina Aguilera postpones her forthcoming summer North American tour due to her busy work schedule, her spokeswoman says. more info

MTV.com News — From Slash to Nine Inch Nails, there are references galore in Rihanna's latest clip.By James Montgomery and Kyle Anderson Rihanna in her "Rockstar 101" video Photo: Def Jam Rihanna's just-released "Rockstar 101" video is arty and sexy and a... more info

Jam! Showbiz Music, Canada — Christina Aguilera has cancelled her entire North American tour to give her more time to rehearse for the concerts. more info

ContactMusic — CHRISTINA AGUILERA has cancelled her entire North American tour to give her more time to rehearse for the concerts.The Beautiful hitmaker was due to kick off her U.S. trek... more info

Undercover, Australia — Christina Aguilera has cancelled her upcoming North American tour to instead talk up a film. more info

411 Mania — Check out the photoshoot... more info

Reuters — LOS ANGELES (Reuters) - Pop singer Christina Aguilera on Monday canceled plans for a summer concert tour blaming work on a new film and an upcoming album that squeezed rehearsal time, according to a statement from her spokeswoman. more info

L.A. Times - Entertainment — New dates will be announced later this year and refunds for tickets to Aguilera s Aug. 19 show at Verizon Wireless Amphitheater in Irvine are available. more info

L.A. Times - Pop & Hiss — Christina Aguilera, who was set to tour in support of her highly anticipated new album "Bionic" alongside Leona Lewis, has pushed back the tour a year. In a statement from Live Nation, Aguilera announced the summer tour has been moved... more info