OutKast is an American hip-hop duo formed in Atlanta in the early 1990s by André 3000 and Big Boi. Their music blends Southern hip-hop, funk, soul, jazz, rock and electronic experimentation, driven by inventive songwriting and two complementary personalities that helped expand the boundaries of Southern rap. With albums such as ATLiens, Aquemini, Stankonia and Speakerboxxx/The Love Below, OutKast became one of the most influential and innovative groups in hip-hop history.