OutKast's exuberant, infectious single "Hey Ya!" helped push sales of their 2003 release Speakerboxxx/The Love Below past the three-million mark. This Atlanta, Georgia-raised duo, who use the professional tags "André 3000" and "Big Boi," are rap music's most unusual set of collaborators. While André 3000 favors outrageous outfits and listens to jazz, Big Boi remains more of the old-school style of rap megastar. Their dual personalities were showcased on Speakerboxxx/The Love Below, which was actually a pair of solo records. It became one of the top-selling records of 2003, and also won them the Grammy Award for album of the year.