Vanessa Hudgens has reached out to her fans following the illness of her father.

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According to WebPro News, the High School Musical star's dad is battling stage 4 cancer. And now she's taken to her Twitter page to let everyone know that he's not doing so well, and she would appreciate any prayers and support.

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Hudgens has been open about how cancer has not only affected her, but her boyfriend as well whose mother died from the disease.

"Last year, my boyfriend, Austin, lost his mom, Lori, to cancer, and my dad has just been recently diagnosed with stage 4 cancer," the actress said during an acceptance speech. "Let me tell you, I hate cancer. I hate cancer with every cell of my being."

In good news, Hudgens will be seen playing Rizzo in the smash live musical Grease, which airs later this month. She will be joined by KeKe Palmer (Marty), Mario Lopez (Vince Fontaine) and Julianne Hough (Sandy). In fact, Sandy was the role that Hudgens saw herself playing, but realized later that Rizzo was more her style.

"I definitely watched Grease growing up. I feel like it was always a part of my life," the actress said. "I mean, she's such an amazing part. Now that I'm older, I'm like, oh my god. She's tough. She's got grit."