Britney Spears has offered fans a once-in-a-lifetime opportunity to appear in the artwork for her next album.

The Toxic hitmaker has branded her upcoming record her most personal yet and is inviting fans to submit photographs of themselves, and those with the best snaps will be included in the album's artwork.

The pop star took to Twitter.com to announce her plan, writing, "This next record is going to be the most personal record I've EVER made...which means that I need my #BArmy (fans) to be a part of it!!... I wanna see ALL of your photos…old merch, fan art, concert pics...EVERYTHING!!... I'm gonna (sic) pick my favorites to be a part of the next album's packaging. Can't wait to see what you all send in!!"

Spears' as-yet-untitled eighth studio album is scheduled to be released in December (13).