Vanessa Hudgens' father, Greg Hudgens, passed away on January 30 , the night before the actress' highly anticipated turn as Rizzo in Grease: Live. Viewers applauded Hudgens on her ability to deliver such an impressive performance while dealing with the news of her dad's death.In the days following, Hudgens has been posting pictures in memory of her father. Yesterday, she shared a picture of his gravesite at the cemetery where he is buried.