Holly Madison shook her little bunny tail and flashed her not-so-little cleavage at the 50th Anniversary of the Playboy Club at the Palms Casino in Las Vegas on Thursday.

The original club closed in 1988, but Holly's ex, Hugh Hefner, opened the new club in Vegas in 2006.

Holly's new reality TV Show, "Holly's World" is premiering on E! June 13. It will follow the adventures of the blond beauty as she lives, works and plays in Las Vegas.

Holly quickly made a big name for herself as the sexy lead in the successful stage show "Peepshow." The six nights a week performances have not kept Holly from settling in to her crazy, new life and forming brand new relationships with a tight-knit circle of outrageous friends.

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