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Writer
Christina Aguilera y Linda Perry. (es) Christina Aguilera, Charles Roane y Kara DioGuardi. (es) Christina Aguilera, Chris E. Martin y Kara DioGuardi. (es) Christina Aguilera, Chris E. Martin, Kara DioGuardi, Charles Roane y Harold Beatty. (es) Christina Aguilera, Chris E. Martin, Kara DioGuardi, Don Costa, James Castor, Langdon Fridie Jr, Douglas Gibson, Harry Jensen, Robert Manigault y Gerald Thomas. (es) Christina Aguilera, Chris E. Martin, Kara DioGuardi, Pamela Sheyne y David Frank. (es) Christina Aguilera, Chris E. Martin, Kara DioGuardi, Roy Hawkins y Rick Darnell. (es) Christina Aguilera, Derryck Thorton, Mark Rankin, Liz Thorton y Kara DioGuardi. (es) Christina Aguilera, Derryck Thorton, Mark Rankin, Liz Thorton, Bruno Colais, Kara DioGuardi y Christopher Barratier. (es) Christina Aguilera, Heather Holley, Tony Reyes, Ben H. Allen y George Henry Jackson. (es) Christina Aguilera, Kara DioGuardi, Kwame Holland y Allen Toussaint. (es) Christina Aguilera, Kara DioGuardi, Mark Ronson y Rob Lewis. (es) Christina Aguilera, Kara DioGuardi, Rich Harrison y Steve Winwood. (es) Christina Aguilera, Linda Perry y Bill Bottrell. (es) Christina Aguilera, Linda Perry y Mark Ronson. (es) Christina Aguilera, Linda Perry, Mark Ronson y Paul III. (es) Christina Aguilera, Mark Ronson, Kara DioGuardi, Raymond Angry, William Guest, M. Knight, Edward Patton, Gladys Knight, Marvin Bernand y Curtis Jackson. (es)

Writer

Christina Aguilera y Linda Perry. (es)
Christina Aguilera, Charles Roane y Kara DioGuardi. (es)
Christina Aguilera, Chris E. Martin y Kara DioGuardi. (es)
Christina Aguilera, Chris E. Martin, Kara DioGuardi, Charles Roane y Harold Beatty. (es)
Christina Aguilera, Chris E. Martin, Kara DioGuardi, Don Costa, James Castor, Langdon Fridie Jr, Douglas Gibson, Harry Jensen, Robert Manigault y Gerald Thomas. (es)
Christina Aguilera, Chris E. Martin, Kara DioGuardi, Pamela Sheyne y David Frank. (es)
Christina Aguilera, Chris E. Martin, Kara DioGuardi, Roy Hawkins y Rick Darnell. (es)
Christina Aguilera, Derryck Thorton, Mark Rankin, Liz Thorton y Kara DioGuardi. (es)
Christina Aguilera, Derryck Thorton, Mark Rankin, Liz Thorton, Bruno Colais, Kara DioGuardi y Christopher Barratier. (es)
Christina Aguilera, Heather Holley, Tony Reyes, Ben H. Allen y George Henry Jackson. (es)
Christina Aguilera, Kara DioGuardi, Kwame Holland y Allen Toussaint. (es)
Christina Aguilera, Kara DioGuardi, Mark Ronson y Rob Lewis. (es)
Christina Aguilera, Kara DioGuardi, Rich Harrison y Steve Winwood. (es)
Christina Aguilera, Linda Perry y Bill Bottrell. (es)
Christina Aguilera, Linda Perry y Mark Ronson. (es)
Christina Aguilera, Linda Perry, Mark Ronson y Paul III. (es)
Christina Aguilera, Mark Ronson, Kara DioGuardi, Raymond Angry, William Guest, M. Knight, Edward Patton, Gladys Knight, Marvin Bernand y Curtis Jackson. (es)