Fellow cast members included Justin Timberlake, Britney Spears, and Christina Aguilera. He is the older brother of Britney Spears and Jamie Lynn Spears. Fellow cast members included Ryan Gosling, Keri Russell, Britney Spears, and Justin Timberlake. She is a parody of singer Britney Spears. "Britney Spears&colon; American Dream". Glory is the ninth studio album from American singer Britney Spears. Circus is the sixth studio album by American singer Britney Spears. Again is the second studio album by American singer Britney Spears. Blackout is the fifth studio album by American singer Britney Spears. The videos lampooned include Britney Spears, lonelygirl15, Little Superstar and others. Spears performed the song during 2009's The Circus Starring Britney Spears. Spears also performed the song at 2009's The Circus Starring Britney Spears. In the context of a Britney Spears concert, does it really matter? Spears performed the song during The Circus Starring Britney Spears (2009). Her siblings are Bryan James and Jamie Lynn Spears.