a&r Christina Aguilera a&r Keith Naftaly backing vocals Aimée Proal backing vocals Max Martin creative director Christina Aguilera design Jeri Heiden design Nick Steinhardt engineer [assistant engineered for mix by] Phil Seaford engineer [engineered for mix by] John Hanes executive-producer Christina Aguilera keyboards Max Martin management Irving Azoff management Tina Kennedy mixed by Serban Ghenea photography by Enrique Badulescu producer Max Martin programmed by, backing vocals, guitar, keyboards Shellback recorded by Sam Holland recorded by [assisted by] Thomas Cullison recorded by [assisted by] Todd Robinson written-by Max Martin written-by Savan Kotecha written-by Shellback written-by Tiffany Amber Phonographic Copyright (p) RCA Records Copyright (c) RCA Records Record Company Sony Music Entertainment Distributed By Sony Music Entertainment Published By MXM Music Published By Kobalt Songs Music Publishing, Inc. Published By Mr. Kanani Songs Published By EMI Blackwood Published By Universal Music Publishing AB Produced For MXM Productions Recorded At MXM Studios Recorded At Chalice Recording Studios Mixed At Mixstar Studios Designed At Smog Design, Inc. Pressed By Arvato Published by MXM Music (ASCAP) (Adm. by Kobalt Songs Music Publishing, Inc.), Mr Kanani Songs/EMI Blackwood (ASCAP), Universal Music Publishing AB (ASCAP)
Produced for MXM Productions Recorded at MXM Studios, Stockholm, Sweden, and at Chalice Studios, Los Angeles, CA Mixed at Mixstar Studios, Virgina Beach, VA