I Wanna Go

This Max Martin and Shellback penned up-tempo number features a Euro-pop whistle motif. The song was one of seven that co-executive producer Max Martin contributed to Femme Fatale and his relationship with Spears goes way back to her debut single, "…Baby One More Time," which he wrote. Spears told Rolling Stone why the Swedish hitmaker gets the best out of her: "Max played a huge role on this album and he has been there since the beginning so there is such a huge level of trust. He gets exactly what I am saying when I tell him what I want and don't want musically. His melodies are incredible and he is always coming up with weird sounds, which I love. The whistle on 'I Wanna Go' still gets me every time I hear it. Who would have thought of that? There is nobody I feel more comfortable collaborating with in the studio."

The Chris Marrs Piliero directed video was filmed in Los Angeles, California and finds Britney poking fun at the idea of the sexy pop star. It co-stars Weeds and Half Baked actor Guillermo Diaz as the convertible driver. One of many pop culture references that litter the video is a movie theater marquee that reads "Crossroads 2: Cross Harder," alluding to the 2002 film, in which Britney had her first major role. Piliero told the New York Post it was, "a fun Easter egg for fans. Plus, Die Hard 2: Die Harder is the most ridiculously awesome way to title a sequel. It just felt like the right thing to do. When Britney saw it, she loved it."