Christina Aguilera. Back to Basics. Back in the Day. クリスティーナアギレラ. 基本に戻る. 戻る日に.
... Yeah, yeah, yeah Donny Hathaway, Lena Horne Miss Aretha, The Real Thing James Brown, Billie Holiday Stevie Wonder, Gladys Knight Louis Armstrong, Minnie Riperton Otis Redding, Etta James
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