Austin Butler is paying tribute to singer-songwriter Lisa Marie Presley after her sudden death at 54 earlier this week. 

"My heart is completely shattered for Riley, Finley, Harper, and Priscilla at the tragic and unexpected loss of Lisa Marie," the Elvis star said Saturday in a statement to EW. "I am eternally grateful for the time I was lucky enough to be near her bright light and will forever cherish the quiet moments we shared. Her warmth, her love, and her authenticity will always be remembered."