Stefani Joanne Angelina Germanotta, known professionally as Lady Gaga, is an American singer-songwriter and actress. She is known for her versatility in both music and film, having truly mastered the art of shape-shifting.
Lady Gaga's song, featuring Beyoncé, is about wanting to get off a telephone call with a boyfriend. Gaga originally wrote the song for Britney Spears. The plot of the video features Beyoncé bailing Gaga out of prison and their ensuing crime spree.