He's the king of TV's longest running game show "The Price is Right," but now beloved TV host Bob Barker has opened up to "Extra" about his frightening battle with a deadly form of skin cancer.

"I'm going to have surgery on Friday the 13th," he revealed, adding, "I didn't choose the date."

Barker admits to being careless in his youth. "I was in the sun from the time I was a kid," he told us. "We went to every beach in the world practically and were by our pool all the time."

And now Bob Barker regrets it all; doctors have found the potentially life-threatening skin cancer on his ear and back. "It catches up with you," he admitted. "The lesion on my back is premelanoma and they're very serious. They want to be careful and get that out. It's serious stuff, absolutely."

After the surgery, Barker will need recovery time, so he cancelled his appearance on the upcoming Daytime Emmys. Barker has fought skin cancer before, and he's optimistic he'll win the battle again.

Actress Mariska Hargitay is involved with the Bring a Buddy skin cancer screening program and was shocked to hear the news. "It's the number one killer right now," she revealed.

And the 81-year-old game show host had advice for us all: "I urge anyone who has spent some time in the sun, whether you're doing it now or not, go to a dermatologist once a year."