Britney Spears has asked fans to search for her in New York - so she can personally hand them free front row tickets to her concert.
The Toxic hitmaker is due to perform at the city's Madison Square Garden on Monday (24Aug09) for three nights as part of her Circus world tour.
She is offering a pair of ringside seats to any fan clever enough to decipher a string of clues she is posting on her blog.
Spears will be hiding somewhere in New York on Monday (24Aug09) prior to the show - and has invited followers to track her down.
In a series of postings on the micro-blogging site, she writes: "If you can find me in NYC on Monday I'll give you 2 front row seats to my show. Follow my twitter for clues... Can you guess where it is?... I'm going to be hiding somewhere in Manhattan."