George Michael has announced the release details for his wedding song for Prince William and Kate Middleton.

The former Wham! Star selected a song to cover after putting out a request to his fans, but he has refused to reveal its identity.

Michael said fans would be able to download the song for free from "late tomorrow night" via CNN.com.

He said he was releasing the song via CNN and not his own website because he wanted to prove that it was "a genuine gift, not a promo exercise".

He also urged fans to donate money to royalweddingcharityfund.org, which the Prince and his future bride have set-up ahead of their wedding next week.

(by Jason Gregory)