Jessie J: I'm proud of Britney song

Jessie J has said writing a song for Britney Spears was an "incredible opportunity".

The Price Tag singer-songwriter penned an aptly titled track Being Britney for the pop star's upcoming Femme Fatale album, which failed to make the final cut.

But Jessie is fine with it, telling MTV.com: "I think [it's a] misunderstanding that just because I'm Jessie J, it doesn't mean that I get pumped up to the top-three choice - it means that I write a song and if it doesn't go on it, it doesn't go on it. She probably had every major songwriter in the world write a song for her."

The 22-year-old continued: "It's just, to even have the opportunity to write a song for her is still incredible. As a songwriter, I'm still taking baby steps. You have to write 10 songs to get one good one and, realistically, I don't have time to write 10. It was a good song though."

Jessie - who has written lyrics for Miley Cyrus and Chris Brown - admitted it would be difficult to pitch the song she wrote for Britney to another artist.

"It's hard to pitch it unless it's Whitney. It was a really cool song, but it is what it is; it happens for a reason. For me, one thing I love about Britney Spears is she is Britney Spears: No one can come and try and steal her path, her lane and that's what I love about her, " she added.