Sydney - July 24 [HQ]

AUSTRALIA/  Singer Christina Aguilera performs during her Back to Basics tour at the Acer Arena in Sydney July 24, 2007.  REUTERS/Patrick Riviere (AUSTRALIA) AUSTRALIA/ AUSTRALIA/  Singer Christina Aguilera performs during her Back to Basics tour at the Acer Arena in Sydney July 24, 2007.  REUTERS/Patrick Riviere (AUSTRALIA) AUSTRALIA/ AUSTRALIA/  Singer Christina Aguilera performs during her Back to Basics tour at the Acer Arena in Sydney July 24, 2007.  REUTERS/Patrick Riviere (AUSTRALIA) AUSTRALIA/ AUSTRALIA/  Singer Christina Aguilera performs during her Back to Basics tour at the Acer Arena in Sydney July 24, 2007. REUTERS/Patrick Riviere (AUSTRALIA) AUSTRALIA/ AUSTRALIA/  Singer Christina Aguilera performs during her Back to Basics tour at the Acer Arena in Sydney July 24, 2007.  REUTERS/Patrick Riviere (AUSTRALIA) AUSTRALIA/
AUSTRALIA/  Singer Christina Aguilera performs during her Back to Basics tour at the Acer Arena in Sydney July 24, 2007.  REUTERS/Patrick Riviere (AUSTRALIA) AUSTRALIA/ AUSTRALIA/  Singer Christina Aguilera performs during her Back to Basics tour at the Acer Arena in Sydney July 24, 2007.  REUTERS/Patrick Riviere (AUSTRALIA) AUSTRALIA/ 14562678  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562677  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562720  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage)
14562722  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562724  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562676  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562693  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562698  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage)
14562708  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562700  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562718  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562701  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562716  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage)
14562717  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562683  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562686  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562688  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562705  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage)
14562706  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562716  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562684  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562682  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562680  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage)
14562723  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562725  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562723  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562682  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562681  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage)
14562707  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562715  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562679  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562673  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562719  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage)
14562675  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562710  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage) 14562674  SYDNEY - JULY 24:  Singer Christina Aguilera performs on stage at the first Sydney night of her "Back To Basics" tour at Acer Arena on July 24, 2007 in Sydney, Australia.  (Photo by John Stanton/WireImage)