"Someday (I Will Understand)" is a song by American recording artist Britney Spears, from the bonus CD of Britney & Kevin: Chaotic. It was released in Europe as a single on August 21, 2005, by Jive Records. In July 2004, Spears announced her engagement to American dancer Kevin Federline, later revealing she would be taking another career break to start a family. Spears wrote the song two weeks before knowing she was pregnant with her first child, Sean Preston Federline. A pop ballad, "Someday (I Will Understand)" lyrics refer to a feeling of empowerment as a pregnant woman. A remixed version of the song was included on the 2005 remix compilation, B in the Mix: The Remixes.