Christina Aguilera Sings Out at The Justin Timberlake & Friends Concert

Christina Aguilera sings her heart out Justin Timberlake & Friends concert at Planet Hollywood Resort and Casino Saturday (Oct. 23) in Las Vegas, Nevada. The 29-year old newly single singer performed fan favorites, including "Beautiful" "Fighter" and Her latest song, "Do not myself tonight," the concert, which benefited Shriners Hospitals for children.

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