Former 'X Factor' star Leona Lewis has said that she is feeling nervous about the release of her new single.
The singer told BBC Radio 1: "I've lived with this song for so long, and now I'm sharing it with everyone, so it's very nerve-wracking."
Her new single, entitled 'Happy' was written by Ryan Tedder of One Republic.
Speaking about her upcoming album 'Echo', she said: "On the album, there's a lot of big sounds, and it's an epic word, so I thought it'd fit the album."
