The theme tune to the Star Wars films is set to be released as a single.

The song is composed and conducted by five-time Oscar winner John Williams and played by the London Symphony Orchestra.

Sony BMG will release Battle Of The Heroes on May 23 reports IMDb.com.

Star Wars: Episode III Revenge Of The Sith is the final installment in the six-part series and stars Ewan McGregor, Natalie Portman and Hayden Christensen. It hits cinemas worldwide on May 19.

Source: Press Release