1: Charli XCX reveals she contributed unrecorded music for Britney Spears.
2: The pop star confirms her involvement in writing songs for Spears.
3: Charli XCX sets the record straight on the unrecorded music.
4: Fans are excited to hear about the collaboration between the two artists.
5: Speculation arises about the potential hits Charli XCX wrote for Spears.
6: The singer-songwriter shares insights into her creative process with Spears.
7: Charli XCX's revelation sparks interest in the unreleased music.
8: The news of Charli XCX's contributions to Britney Spears' music excites fans.
9: Stay tuned for updates on any future releases of the collaborative tracks.