Sometimes (1999)
Europe
01) Sometimes Radio Edit
02) I'm So Curious (Un-Released Track)
03) Sometimes Soul Solution (Mid Tempo Mix)
USA
01) Sometimes Radio Edit
02) Sometimes Soul Solution (Mid Tempo Mix)
03) I'm so Curious
Japan
01) Sometimes Radio Edit
02) Baby One More Time (Sharp Platinum Vocal Mix)
03) Baby One More Time (Davidson Ospina Club Mix)

Crazy (1999)
Australia
01) (You Drive Me) Crazy : The Stop Remix!
02) (You Drive Me) Crazy : The Stop Remix! (Instrumental)
03) I'll Never Stop Loving You
Japan
01) Stronger (Album Version)
02) Stronger (Instrumental)
03) Walk on By
04) Stronger (Miguel Migs Vocal Edit)
UK
01) (You Drive Me) Crazy : The Stop Remix!
02) (You Drive Me) Crazy (Spacedust Dark Dub)
03) (You Drive Me) Crazy (Spacedust Club Mix)

Born To Make You Happy (1999)
Europe (1s Version)
01) Born To Make You Happy (Radio Edit)
02) Born To Make You Happy (Bonus Remix)
Europe (2nd Version)
01) Born To Make You Happy (Radio Edit)
02) Born To Make You Happy (Bonus Remix)
03) (You Drive Me) Crazy (Jazzy Jim's Hip-Hop Mix)
04) Baby One More Time (Answering Machine Message)
UK
01) Born To Make You Happy (Radio Edit)
02) Born To Make You Happy (Bonus Remix)
03) (You Drive Me) Crazy (Jazzy Jim's Hip-Hop Mix)

From The Bottom OF My Broken Heart (2000)
Australia
01) From The Bottom of My Broken Heart (Radio Edit)
02) (You Drive Me) Crazy (Jazzy Jim's Hip-Hop Mix)
03) Thinkin About You
04) Sometimes Answering Machine Message
USA
01) From The Bottom of My Broken Heart (Radio Edit)
02) (You Drive Me) Crazy (Jazzy Jim's Hip-Hop Mix)

Oops!... I Did It Again (2000)
Europe & Japan
01) Oops!...I Did It Again (Album Version)
02) Oops!...I Did It Again (Instrumental)
03) From The Bottom Of My Broken Heart (Davidson Ospina Millenium Funk Mix)
04) Deep In My Heart
UK
01) Oops!...I Did It Again (Album Version)
02) Deep in My Heart
03) From The Bottom Of My Broken Heart (Davidson Ospina Millenium Funk Mix)

Lucky (2000)
01) Lucky
02) Heart (Un-Released Track)
03) Lucky (Jack D. Elliot Radio Mix)

Stronger (2001)
Europe (CD 1)
01. Stronger (Album Version)
02. Walk on By
Europe (CD 2)
01) Stronger (Album Version)
02) Stronger (Instrumental)
03) Walk on By
04) Stronger (Miguel Migs Vocal Edit)
Japan
01) Stronger (Album Version)
02) Stronger (Instrumental)
03) Walk on By
04) Lucky (Jason Nevins Radio Mix)
Taiwan
01) Stronger (Album Version)
02) Stronger (Instrumental)
03) Walk on By
04) Stronger (Miguel Migs Vocal Edit)
UK
01) Stronger (Album Version)
02) Walk on By
03) Stronger (WIP Remix)
USA
01) Stronger (Album Version)
02) Stronger (Pablo La Rosa's Tranceformation Edit)

Don`t Let Me Be The Last To Know (2001)
01) Don't Let Me Be The Last To Know
02) Don't Let Me Be The Last To Know (Hex Hector Radio Mix)
03) Don't Let Me Be The Last To Know (Hex Hector Club Mix)

I`m A Slave 4 U (2001)
Europe
01) I'm A Slave 4 U (Main Version)
02) I'm A Slave 4 U (Instrumental Version)
03) Intimidated
04) Britney Interview
UK
01) I'm A Slave 4 U (Main Version)
02) Intimidated
03) I'm A Slave 4 U (Instrumental Version)
USA
01) I'm A Slave 4 U
02) Instrumental

I`m not a girl, Not yet a woman (2001)
Germany
01) I`m not a girl, Not yet a woman (Album Version)
02) I`m not a girl, Not yet a woman (Spanish Fly Remix Radio Edit)
03) I`m not a girl, Not yet a woman (Chocolate Puma Dub)
04. I Run Away (Album Version)
Taiwan
01) I'm Not A Girl Not Yet A Woman (Album Version)
02) I`m not a girl, Not yet a woman (Spanish Fly Remix Radio Edit)
03) I`m not a girl, Not yet a woman (Chocolate Puma Dub)
04) I Run Away (Album Version)
UK
01) I'm Not A Girl Not Yet A Woman (Album Version)
02) I`m not a girl, Not yet a woman (Spanish Fly Remix Radio Edit)
03) I Run Away (Album Version)

Overprotected (2001)
Australia
01) Overprotected Album Version
02) Overprotected JS16 Remix
03) Overprotected JS16 Dub
04) Exclusive Chat With Britney
05) I'm A Slave 4 U
06) I'm A Slave 4 U Thunderpuss Radio Mix
Europe
01) Overprotected Album Version
02) Overprotected JS16 Remix
03) Overprotected JS16 Dub
04) Exclusive Chat With Britney
UK
01) Overprotected Album Version
02) Overprotected JS16 Remix
03) I'm A Slave 4 U Thunderpuss MixShow Edit (The Remix)

Overprotected (Darkchild remix)(2002)
01) Overprotected (Darkchild Remix)
02) Overprotected (Radio Edit)
03) Overprotected (Album Version)

I Love Rock 'N' Roll(2002)
01) I Love Rock N' Roll
02) I Love Rock N' Roll (Karaoke Version)
03) Overprotected (Darkchild Remix)
04) I`m not a girl, Not yet a woman (Metro Remix)
05) Overprotected (Riprock 'n' Alex G. Remix)
06) I Love Rock 'N' Roll" Enhanced Video

Anticipating (2002)
01) Anticipating
02) I'm Not A Girl, Not Yet A Woman (Metro Remix)
03) Overprotected (Darkchild Remix)

Boys (2002)
01) Boys (Co Ed Remix Feat. Pharrell Williams)
02) Boys (Co Ed Remix) Instrumental
03) Boys Album Version
04) Boys Album Version Intrumental

Me Against The Music (2003)
01) Me Against The Music (Video Mix)
02) Me Against The Music (Peter Rauhofer Radio Mix)
03) Me Against The Music (The Mad Brit Mixshow)

Toxic (2004)
International
01) Toxic
02) Call Out Research Hook
DVD Single
01) Toxic
02) In the Zone Special
03) Toxic (Lenny Bertoldo Mix Show Edit)

Everytime (2004)
International
01) Everytime Album version
02) Everytime Hi-Bias Radio Remix
03) Everytime Above & Beyond?s Radio Mix
040 Everytime Scumfrog Vocal Mix

Outrageous (2004)
The Remixes
01) Murk Space Miami Mix
02) R.Kelly Remix
03) Junkie XL's Dancehall Mix
04) Josh Harris Mixshow
05) Junkie XL's Tribal Mix

My Prerogative (2004)
01) My Prerogative
02) My Prerogative (Instrumental)
03) My Prerogative (X-Press 2 Vocal Mix)
04)My Prerogative (Armand Van Helden Remix)
05) My Prerogative (X-Press 2 Dub)

Do Somethin' (2005)
01) Do Somethin'
02) Do Somethin'(J Monk Remix) (Radio Edit)
03) Do Somethin'(Thick Vocal Mix)
04) Everytime (Valentin Remix)

Someday (I will understand) (2005)
01) Someday (I Will Understand)
02) Someday (I Will Understand)" [Instrumental]
03) Someday (I Will Understand)" [Hi-bias Signature Radio Remix]

Gimme More (2007)
01) Gimme More
02) Gimme More (Kaskade Club Remix)
03) Gimme More (Junkie XL Remix)
04) Gimme More (Seiji Dub)
05) Gimme More (Stonebridge Club Remix)

Piece Of Me (2008)
01) Piece of Me (Album Version)
02) Piece Of Me video
03) Piece of Me (Bloodshy & Avant's Boz o lo Remix)
04) Piece of Me (Bimbo Jones Remix)
05) Piece of Me (Vito Benito Remix)
06) Gimme More (The "Kimme More" Remix) (featuring Lil' Kim)

Break The Ice (2008)
01) Break the Ice [Main version]
02) Everybody

Womanizer (2008)
01) Womanizer (Main Version)
02) Womanizer (Instrumental)

Circus (2009)
01) Circus (Main Version)
02) Circus (Instrumental)

If U Seek Amy (2009)
01) If U See Amy
02) If U Seek Amy (Instrumental)