The 27-year-old actress announced on Twitter that her beloved father Greg Hudgens lost his battle with cancer on January 30.
She said she will dedicate her performance in "Grease: Live" musical special - in which she plays Rizzo - to his memory.
"I am so sad to say that last night my daddy, Greg passed away from stage 4 cancer. Thank you to everyone who kept him in your prayers. Tonight, I do the show in his honour (sic)," she tweeted.
The actress revealed her father had been diagnosed with the disease last August.