Jackie Chan has released several albums in the past

He revealed in a blog entry that he had spent three hours recording We Are Ready on a trip to the Chinese capital.

The song was written by Peter Kam, who won a Silver Bear at the Berlin Film Festival last year for his score to the production Isabella.

And an English-language version of it was planned, Kam told Associated Press.

He added that a second Chinese version had been sung by more than 100 pop stars.

Chan praised the lyrics to the song, which include the lines: "Waiting year after year/ We can see into the future/ Together with hard work and sweat/ We've created the five different colours."

'Goose bumps'

In an earlier blog entry, the star told of his excitement at attending an event to mark the one-year countdown to the start of the Games.

"During this public appearance, I actually had goose bumps on my arms," he wrote.

"The ceremony made me very emotional and I said to myself, 'That's our China, that's our day!'

"I felt this moment belonged to our China, this moment belonged to us."