Credits adapted from album's liner notes.
Backstreet Boys •
Nick Carter – vocals (all tracks), vocal
arrangements (tracks 6, 13) •
Howie Dorough – vocals (all tracks), vocal arrangements (tracks 6, 13) •
Brian Littrell – vocals (all tracks), vocal arrangements (tracks 6, 13) •
AJ McLean – vocals (all tracks), vocal arrangements (tracks 6, 13) •
Kevin Richardson – vocals (all tracks), piano (tracks 1, 4, 12), vocal arrangements (6, 13)
Additional personnel •
Alex Acuña – additional percussion (track 9) • Keith Armstrong –
mixing assistant (track 4) •
Rasmus Bahncke – co-producer, keyboards,
programming, and arrangements (track 6) •
Tommy Barbarella – keyboards and string arrangements (tracks 3, 7) • Jerry Barnes – bass (track 4) • Matt Beckley – assistant
engineer (track 3), mixing assistant (track 7) •
Michael Bland – drums (tracks 3, 7) •
Paul Boutin – engineer and
editing (track 14) • Lee Bridges – assistant engineer (track 1) • Johan Brorson – producer, engineer, guitar, and bass (track 11) • Adam Brown – string engineer (track 8) •
Paul Buckmaster – string arrangements (track 4) • Grecco Buratto – guitar (track 9) •
Paul Bushnell – bass (tracks 9, 10) •
Teddy Campbell – drums (track 14) • Dan Chase –
Pro Tools technician (track 2) •
Ken Chastain – percussion and effects (tracks 3, 7) •
Vinnie Colaiuta – drums (tracks 9, 10) •
Tom Coyne –
mastering • John Silas Cranfield – engineer (track 6) • Dave Dilbeck – engineer (track 1) • Aaron Fessel – assistant engineer (track 1) •
John Fields – producer, engineer, piano, bass, guitar, keyboards, and effects (tracks 3, 7); mixing (track 3) • Jon Gass – mixing (track 14) •
Serban Ghenea – mixing (track 2) •
Lukasz "Dr. Luke" Gottwald – producer and engineer (tracks 2, 8), instruments (track 2), guitar and bass (track 8) • Isobel Griffiths – string contractor (track 12) • Chris Haggerty – digital editing (tracks 1, 8, 9) • John Hanes – additional Pro Tools engineering (track 2) • Dabling "Hobby Boy" Harward – engineer and editing (track 14) •
Brandon Heath – acoustic guitar (track 1) • Femio Hernandez – mixing assistant (track 7) • Michael Ilbert – guitar engineer, bass engineer, drum engineer, and Pro Tools editing (track 8); mixing (track 11) • Lana Israel – production coordinator (tracks 6, 13) •
Corky James – guitar (track 14) • Mark Kiczula – assistant engineer (track 3), mixing assistant (track 7) • Mark Kibble – producer (track 15) •
The London Session Orchestra – strings (track 8) •
Chris Lord-Alge – mixing (tracks 1, 4, 5, 8, 9) •
Tom Lord-Alge – mixing (track 7) •
Wil Malone – string arrangement and conducting (track 8) •
Billy Mann – producer, acoustic guitar, electric guitar, arrangements, programming, and vocal arrangements (tracks 6, 13); engineer (track 13) •
Max Martin – producer and engineering (tracks 2, 5, 8), instruments (tracks 2, 5), guitar (track 8) • Alan Mason – assistant engineer (track 2) • Skye McCaskey – additional engineering (track 1) • Chris McMurtry – electric guitar (track 1) •
Steven Miller – engineer (tracks 3, 7), mixing (track 3) •
Brent Milligan – bass (track 1) • Brian Montgomery – Pro Tools technician (track 4) •
Dan Muckala – producer, engineer, acoustic piano, additional keyboards, and string arrangements (track 1) •
Jamie Muhoberac – keyboards (track 10) • Pablo Munguia – engineer (track 4), vocal engineer (tracks 9, 12) • Alex Nifong – electric guitar (track 1) • Christian Nilsson – engineer (2, 11), Pro Tools technician (track 2), producer and percussion (track 11) •
John Ondrasik – executive producer (track 4) •
Shawn Pelton – drums (tracks 2, 4, 5), percussion (track 2) • Ross Petersen – assistant Pro Tools engineer (track 4) • Marc "Fafu" Pfafflin – programming (track 3) •
Adam Phillips – guitar (track 12) • Randy Poole – mixing (track 15) • Joe Porter – drums (track 1) • Steve Price – strings engineer (track 12) • Brian Pugh – assistant engineer (track 8) • Ed Quesada – assistant engineer (track 14) •
Rami – producer, engineer, and instruments (track 5) • Johan Reivén – drums (track 8) • Tim Roberts – assistant Pro Tools engineer (track 2) •
Chris Rojas – engineer, acoustic guitar, electric guitar, arrangements, keyboard programming, and drum programming (track 13) • Jeff Rothschild – engineer and mixing (track 10) • Dave "Natural Love" Russell – engineer and editing (track 14) • Will Sandalls – engineer (track 13) • Brian Schueble – engineer (track 4) •
John Shanks – producer, mixing, and guitar (track 10) • Tony Shepperd – engineer (track 15) •
F. Reid Shippen – additional engineering (track 1) • Alex Smith – assistant engineer and mixing assistant (track 12) • Robin Smith – string arrangement and conducting (track 12) • James Stone – assistant strings engineer (track 12) •
Greg Suran – guitar (tracks 3, 7) • Shari Sutcliffe – contractor and production coordinator (track 10) • Ren Swan – engineer and mixing (track 12) • Kennie Takahashi – mixing assistant (track 3) •
Mark Taylor – producer, engineer, mixing, and string arrangement (track 12) •
Chris Testa – engineer (tracks 3, 7) • David Thomas – producer (track 15) •
Michael Thompson – guitar (track 14) • René Tromborg – co-producer, keyboards, programming, arrangements, drums, and percussion (track 6) •
The Underdogs – producers (track 14) • Mark Valentine – additional engineering (track 10) • Seth Waldmann – engineer (track 2), assistant Pro Tools engineer (track 4) •
Greg Wattenberg – producer, engineer, guitar, programming, and string arrangements (track 4) •
Paul Wiltshire – producer, engineer, and arranger (track 9) • Frank Wolf – drum and bass engineer (track 9) •
Gavyn Wright – strings leader (tracks 8, 12) •
Ghian Wright – assistant vocal engineer (track 12), assistant engineer (track 15) • Victoria Wu – additional production (track 9) •
Andy Zulla – mixing (tracks 6, 13) ==Charts==