List of unreleased songs recorded by Britney Spears

Several unreleased songs had been planned for inclusion on her studio albums ...Baby One More Time (1999), Britney (2001), In the Zone (2003), Blackout (2007), Circus (2008), Femme Fatale (2011), and Glory (2016), but were ultimately rejected.

There are many registered tracks included under the unreleased section that have not been commercially released, but have gained media attention or were confirmed by Spears herself.

Many of her unreleased songs have been registered (usually by her company Britney Spears Music) with professional bodies such as the United States Copyright Office, Broadcast Music Incorporated (BMI), and American Society of Composers, Authors and Publishers (ASCAP).

[1][2][3] Spears's unreleased material includes songs recorded by her and demo versions, some co-written by artists such as Justin Timberlake and Lady Gaga.

She has also co-written and recorded songs that were later given to other artists, such as her sister Jamie Lynn Spears, Selena Gomez and BoA.