Britney Spears will be a surprise performer at Diesel's huge party in Brooklyn this Saturday.
Fashionista says they heard this rumour from an entertainment agent based in the city who said, "I don't believe it, either, but that's what the rumour is."
Other celebrities in attendance will be M.I.A., N.E.R.D, and Joel and Benji Madden.
Looks like this is phase four of the comeback! Can't wait!