Celebrity boob jobs: when size DOES matter!(WireImage.com; AP Photo)

The most amusing part of any celebrity boob job is when a star adamantly denies having anything done, even though it's obvious her molehills have suddenly turned into mountains.

Whether they admit it or not, we can't help but notice when a celeb gets a boost. From Victoria Beckham's inflated ones to Kate Hudson's small new members and Janet Jackson's incredible gravity-defying ones, we look at some of Hollywood's boob jobs.

Also see why Vivica A. Fox's implants got her an entry in the Urban Dictionary and how Christina Aguilera's grown since her 'Genie in a Bottle' days.

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