It’s time for the semi-annual “Dancing With the Stars” contestant guessing game.

First up: Pamela Anderson.

The busty ex-“Baywatch” star has signed on for the upcoming season of “Dancing,” according to radaronline.com.

The new season of “Dancing” kicks off March 22, and ABC — which never comments on contestants beforehand — held the party line yesterday.

“We don’t comment on casting rumors,” a show spokeswoman told The Post.

“Our cast will be announced March 1 during the ‘Bachelor’ finale.”

Anderson’s last regular TV gig was Fox’s “Stacked,” in which she starred for two seasons (2005-06).

Former “American Idol” judge Paula Abdul, who’s been wooed by the show in the past, has been rumored to be joining this season — as a contestant, and not a judge.

“Dancing” is also looking to replace co-host Samantha Harris, who left last month to focus on her work on “The Insider” and “ET.”

Donny Osmond won last season’s “DWTS” competition.