The music of Destiny was a collaborative effort between Bungie's former in-house composer Marty O'Donnell, his partner Mike Salvatori and former Beatle, Sir Paul McCartney. One of McCartney's contributions to the game's soundtrack, The New York Times reports, will be released as a single later this year.

The Times calls McCartney's track the game's theme song, reporting that it is fully orchestrated and was recorded at Abbey Road Studios under the direction of Giles Martin, son of The Beatles producer Sir George Martin.

Other details about the song are under wraps, apparently, so it's unclear if the song features McCartney's vocals and is in the vein of a theme song like "Live And Let Die," which Paul and Linda McCartney wrote for the James Bond movie of the same name. Interestingly, the song's producer is Mark "Spike" Stent, who has experience recording a handful of James Bond movie theme songs: Tina Turner's "GoldenEye" and Madonna's "Die Another Day."

The Destiny theme song is about hope, according to the Times.

McCartney announced his involvement in the Destiny score in 2012, tweeting, "I'm really excited to be working on writing music with @bungie, the studio that made Halo."

O'Donnell detailed his collaboration with McCartney last year when Bungie unveiled the first details on Destiny. He said the former Beatle was drawn to the project by his interest in the technology behind interactive music.

"He didn't only want to do Paul McCartney music," O'Donnell said. "He wants to get involved in themes, how melodies and motives can be a touchpoint for people."