Katy Perry Underboob, Jessica Simpson Cleavage, And The Hottest Celebs Modeling Shoes In NYC

Home shopping channel QVC busted out the big guns—quite literally—to celebrate the launch of their FFANY shoes that not only look great, their purchase also supports breast cancer prevention and awareness. What better celebrities, then, to call attention to this worthy cause than two of the biggest breasted ones around: Katy Perry and Jessica Simpson.

These two busty beauties stole the show in their revealing outfits, and even though the shoes were the star of the evening for most in attendance, we all know what the real attraction here was. Katy Perry's dress/pant suit thing is really something else and it shows off some nice underboob in the more sheer portions around Katy's rack.

Jessica Simpson was positively busting at the seams, though, seemingly unable to contain her massive breasts inside the dress she wore. Then again, what better way to remind everyone of the good cause than by showing off your breasts? Jessica's got this thing figured out!

It looks like a great time was had by all, and hopefully Katy and Jessica got up and did a demonstration on how to properly check your breasts for any lumps. Come on, ladies, it's for a good cause!

[Check Out The Hottest Stories From Katy Perry Over Here]

Photo Credit: Splash News