Complex sentence: I Did It Again (2000), "Britney" (2001), "In the Zone" (2003) and "Circus" (2008), except "Blackout" (2007) and "Femme Fatale" (2011).
Split into simpler sentences: I Did It Again (2000), "Britney" (2001), "In the Zone" (2003) and "Circus" (2008). The album does not contain tracks from "Blackout" (2007) or "Femme Fatale" (2011).