The attack of the celebrity fragrances is upon us, not that it's a new development or anything, they just seem to be very prevalent right this second. In the past few days alone we've been hearing about Sarah Jessica Parker's new scent called Covet, Mariah Carey's new fragrance called M by Mariah Carey, David and Victoria Beckham's new fragrance called Instinct and others. Britney Spears isn't new to the smelly game, she has already released Curious, Fantasy and Midnight Fantasy and has just announced that she will be releasing a fourth fragranced called Believe. The really interesting thing about this new fragrance is the ad campaign that is being used to promote the new smell. Here is the Believe fragrance ad which features a photo of Britney Spears that was supposedly taken this summer: