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christina aguilera, christina aguilera, linda perry, liz garnett
christina aguilera
christina aguilera
adam levine, shellback
christina aguilera
mel torme, robert wells, cindy blevins
christina aguilera & missy elliott
mac huff
nelly featuring christina aguilera
kara dioguardi, chris e. martin, christina aguilera
christina aguilera
linda perry, christina aguilera & beverly mcclellan, leandro cardoso