Whatcha Think About That

This song, about a lady getting rid of her controlling boyfriend, features Missy Elliott contributing a cheeky rap. This was the first time the quartet had collaborated with a female Hip-Hop artist. Previously they'd teamed up with men such as Snoop Dogg and Busta Rhymes. Nicole Scherzinger told MTV News: "Missy is so hot because she's the first female we've worked with on our album. And she's taking the Pussycat Dolls to a whole other level."

Missy Elliott references Katy Perry's hit song "I Kissed a Girl," when she raps: "Up in that club it's just me and my girls, play like Katy Perry kissing on girls."

This samples "Je m'appelle Jane," which can be found on Jane Birkin's 2004 album Rendez-Vous.