Vanessa Hudgens Vanessa Hudgens

Vanessa Hudgens got the terrible news that her father Greg lost his battle with cancer Saturday - a day before she's set perform as Rizzo in Grease: Live on Fox.

She tweeted the news Sunday morning, thanking people for their prayers and in another post, dedicating her performance in his honor.

Our sincere condolences go out to Vanessa and her family at this time.

Grease: Live airs Sunday at 7/6c on Fox. Watch the cast play a game of "Most Likely To..." below.