New Delhi, Nov 13 : American pop princess Britney Spears is said to be working on a "top secret project" with her manager and choreographer.

Spears, whose new album ''Circus'' is scheduled for release on her 27th birthday on December 2, had released exclusive photographs of auditions she held for male backing dancers on her MySpace page, the China Daily reported.

The dancers are part of a "top secret project", and they have reportedly been recruited "in anticipation of next month''s ''Circus''".

The ''Womanizer'' singer''s new page went live on November 10, and included with the new pictures were the one''s taken at this year''s MTV Video Music Awards. (ANI)