Photo by TIMOTHY A. CLARY/AFP via Getty Images Britney Spears' self-titled third studio album, released in 2001, marked a shift towards more mature pop and R&B sounds, becoming a cultural touchstone for fans. The album included hit songs like "I'm a Slave 4 U," "I'm Not a Girl, Not Yet a Woman," and "Overprotected," which captured different energies and resonated deeply with listeners.