🔊💜Today, November 28, 2008, Britney Spears released “Circus,” her sixth studio album. This album is her sixth studio set, and it peaked at no. 1 on the US Billboard 200. Spears released five singles in support of her “Circus,” with the latest ‘Shattered Glass’ also being released today 2008. Song is a production by Dr. Luke and Benny Blanco.