Holly Madison nude is not very difficult to come by. This is a Playboy model, after all.
But the star of The Girls Next Door reality show is currently baring it all for a new PETA campaign. Evidently, she loves animals almost as much as she loves Hugh Hefner.
We could never get sick of seeing Holly in her birthday suit, though. Especially when compared with Heather Mills nude and other celebs that take off their clothes for no charitable reason (sorry, Olivia Mojica, sex tapes don't count).
Unlike our recent take on Fergie, this is one fashion choice we'll rarely criticize.