Joan Rivers (search), the fashion critic who has openly joked about her own cosmetic surgery, will guest star as herself on the season finale of the FX drama series "Nip/Tuck." (search)

In the episode to air Oct. 5, Rivers will play herself and meet with the show's plastic surgeons, played by Dylan Walsh (search) and Julian McMahon, for an unusual cosmetic consultation. It is so unusual that in the show, Rivers flies to the surgeon's Miami practice to avoid the glare of the paparazzi.

Though FX is tight-lipped about the nature of the discussed procedure, Scott Seomin, a publicist for the cable station says, "It's definitely not something she's had done before."

Rivers is best known for her celebrity red-carpet coverage on cable's E! Entertainment network. In June, she and daughter Melissa joined the TV Guide Channel to cover the entertainment world.