Sir Paul McCartney has announced plans to release a new song next week, according to Digital Spy.

The singer recorded 'Hope for the Future' for the hit video game Destiny earlier this year, but the track has only been available to listen to within the game itself.

However, McCartney has now revealed that he will officially release the song on December 8, along with a handful of new remixes.

"When you're writing something like 'Hope for the Future', which is custom made, it is like doing a portrait for someone," McCartney explained.

"You have to use your imagination and work out what they need, what they're going to want and then what you want to give them.

"Then you've got to combine those three things into something that you still think maintains integrity. So in the game you're a Guardian of the last city on Earth so that suggested to me the 'hope for the future' idea and I went from there.

"Then I thought it is not just a game song, this will get played outside the game so it has got to be standalone too, you can't have references to aliens or people will think, 'What's he talking about?' So it had to have its own standalone meaning and integrity."

Destiny was released back in September and sold-through more than $325 million worldwide in its first five days, making it the biggest new video game franchise launch in history.