The father of High School Musical alum, Vanessa Hudgens, passed away on Saturday after losing his battle with cancer. Greg Hudgens was 65.

The actress revealed the news on Twitter just hours before “Grease:Live” was set to air on Fox on Sunday.

“I am so sad to say that last night my daddy, Greg passed away from stage 4 cancer,” she wrote, which was retweeted by her younger sister, Stella Hudgens. “Thank you to everyone who kept him in your prayers.”

Despite her loss, the 27-year-old actress still plans to take part in the musical, saying she will dedicate her performance as Rizzo to her late dad.

The actress tweeted, “Tonight, I do the show in his honor.”

The reaction has been quick online, with fans, friends and fellow celebrities taking to Twitter to offer Hudgens words of sympathy after the loss of her father. They also gave her love and support as she heads into the live performance of the beloved 1950s musical.

High School musical co-star Ashley Tisdale tweeted, “I am devastated. Just thinking of my girl and praying for her strength today.”

Fellow Disney alum Demi Lovato also expressed her support, “My prayers are with @VanessaHudgens today.. You are one strong, and admirable woman. #GreaseLive

Last July, Hudgens posted a picture with her father on Instagram, asking friends and fans to “pray for his healing.”

It was at the Industry Dance Awards in Los Angeles, where she was awarded for Breakthrough Performer, that the actress revealed that Greg was sick with cancer.

“Let me tell you, I hate cancer. I hate cancer with every cell of my being,” Hudgens shared onstage. “This award, it means a lot to me but I dedicate it to my boyfriend’s mom, Lori, my dad, and to all the families out there who are struggling with this, because it really takes a strong person and a strong family to be able to help those out who are going through this.”

Hudgens’ boyfriend, “Arrow” star Austin Butler, lost his mother to cancer in September 2014.

In addition to his daughters, Vanessa and Stella, Greg is survived by his wife, Gina Hudgens.