– backing vocals (track 17) John Hanes – digital editing (tracks 5 and 14) Chaz Harper – mastering (disc two) Nana Hedin – backing vocals (tracks 4, 6, 8, 13 and 16) Emma Holmgren – backing vocals (tracks 1 and 2) Jake Hooker – songwriting (track 17) Jean-Marie Horvat – mixing (track 17) Chad Hugo – additional production (track 10), instrumentation (tracks 3 and 10), production (tracks 3 and 10), remix production (track 10), songwriting (tracks 3 and 10) Angela Hunte – backing vocals (track 20), songwriting (track 20) Janson & Janson – string arrangement (tracks 2 and 19), string conduction (tracks 2 and 19) Rodney Jerkins – production (track 17), remix engineering (track 12), remix instrumentation (track 12), remix mixing (track 12), remix production (track 12) Henrik Jonback – guitar (tracks 1, 2, 19 and 20), songwriting (tracks 2, 19 and 20) R. Kelly – backing vocals (track 14), mixing (track 14), production (track 14), songwriting (track 14) David Kreuger – production (track 11), programming (track 11), songwriting (track 9) Alexander Kronlund – songwriting (track 13) Robert John "Mutt" Lange – production (track 15), songwriting (track 15) Marc Lee – engineering assistance (track 17) Tobias Lehmann – vocal engineering (track 1) Uwe Lietzow – logic audio operation (track 1) Thomas Lindberg – bass (tracks 2, 4, 8, 9, 11, 18 and 19) Kristian Lundin – keyboards (track 16), production (track 16), programming (track 16), songwriting (track 16) Steve Lunt – A&R, arrangement (tracks 1, 2, 5, 19 and 20) Donnie Lyle – guitar (track 14) Madonna – songwriting (track 5), vocals (track 5) Penelope Magnet – arrangement (track 5), backing vocals (tracks 5 and 14), production (track 5), songwriting (track 5), vocal arrangement (track 14), vocal production (track 14) Per Magnusson – keyboards (track 11), production (track 11), songwriting (track 9) Fabian Marasciullo – engineering (track 17), remix engineering (track 12), remix mixing (track 12) Max Martin – backing vocals (tracks 6, 8, 9, 13 and 18), engineering (tracks 4, 6, 8 and 12), guitar (track 12), keyboards (tracks 4, 6 and 13), mixing (tracks 4, 6, 8, 9, 12, 13 and 18), production (tracks 4, 6, 8, 9, 13 and 18), programming (tracks 4, 6 and 13), songwriting (tracks 4, 6, 8, 9, 12, 13 and 18), vocals (track 4) Charles McCrorey – engineering assistance (tracks 5, 12 and 18–20) Sean McGhee – editing (track 7), engineering (track