Following Alex Trebek's announcement last week that he had been diagnosed with stage 4 pancreatic cancer, Olivia Newton-John is offering some words of encouragement to the longtime "Jeopardy!" host.

Newton-John, 70, currently battling cancer for the third time, told Entertainment Tonight that she reached out to Trebek after hearing of his diagnosis.

"I sent him a message saying, 'I know you can get through this,' and, 'Don't listen to stage 4 and all of (that)," she said. "Don't read the statistics and stay focused and see how you can heal yourself. That helps."

She continued: "Sense of humor is vital. He has a great attitude and a great sense of humor about it and I'm sure he'll do very well."

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Trebek, 78, announced his diagnosis last Wednesday in a video on the "Jeopardy!" YouTube channel, vowing to fight the disease "with the love and support of my family and friends and with the help of your prayers."

"Just like 50,000 other people in the United States each year, this week I was diagnosed with stage 4 pancreatic cancer," he said. "Now normally, the prognosis for this is not very encouraging, but I’m going to fight this, and I’m going to keep working."

Trebek continued: "I plan to beat the low survival-rate statistics for this disease. Truth told, I have to! Because under the terms of my contract, I have to host 'Jeopardy!' for three more years!"

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Newton-John fought breast cancer in 1992 and announced in 2018 a tumor had returned to her back. She also recently revealed a second bout of cancer that surfaced in her shoulder in 2013, which had previously been kept a secret "because of the speculation, which happened at times."

"I just decided I wanted to go through it myself," Newton-John said on the "Today" show last week. "It was just a decision that I would keep it to myself at the time."