Britney Spears is a singer.
Britney Spears . Spears 's sixth studio album , Circus ( 2008 ) , included the international chart-topping single `` Womanizer '' . Circus is the sixth studio album by American singer Britney Spears . Glory is the ninth studio album by American singer Britney Spears . In the Zone is the fourth studio album by American singer Britney Spears .