Spears had recorded a song titled "I've Just Begun (Having My Fun)" originally for her fourth studio album, "In the Zone" (2003).
== Ozadje ==13. avgusta 2004 je Britney Spears preko založbe Jive Records oznanila, da bo 16. novembra 2004 izšla njena prva kompilacija z največjimi uspešnicami, naslovljena "Greatest Hits: My Prerogative".