Britney Spears busy with 'secret' work

Singer Britney Spears has left her fans curious as she has revealed that she is busy working on something "secret".

The 31-year-old, who has given hits like "Baby one more time", "Ooops! I did it again" and "You drive me crazy", hinted at something new on her plate, without revealing the actual plan, reports femalefirst.co.uk.

"Taking a quick break to say hi to all my tweeps. Rehearsing for something top secret happening next week," Spears posted.

When a fan asked if it was for a video, Spears replied by posting a wink.