The term sway has a specific meaning in the technique of ballroom dancing. Basically, it describes a body position in which its upper part gracefully deflects from the vertical. Entrance to and exit from this position are matters of fine technical detail and differs in various dance figures. The purposes of sway are both better control of dance motion and aesthetics.
In 2004, Sway promotional CD and DVD singles were distributed throughout the U.S. to DJs and VJs for promotion of Shall We Dance?. It was featured on the soundtrack which was released on October 12 2004 through Casablanca Records. It was not officialy released until 20 November 2006, although it was only released in Germany, Austria, and Switzerland.
"Sway" is a 1997 New Zealand music single by Bic Runga. It appeared on her first album, Drive, and it was featured in the 1999 film American Pie. It was released in 1998 in Germany, Australia, and twice in the United Kingdom.