Britney Spears is a singer.
Blackout is the fifth studio album by American singer Britney Spears . Britney Jean Spears ( born December 2 , 1981 ) is an American singer , dancer , and actress . ... I Did It Again ( 2000 ) , became international successes , with the former becoming the best-selling album by a teenage solo artist . Circus is the sixth studio album by American singer Britney Spears .