Speaking of Lisa Marie's last public appearance at the Golden Globes to celebrate Baz Luhrmann's critically acclaimed Elvis biopic starring Austin Butler, Priscilla revealed the mother-daughter duo shared one final laugh together.
"We had just gotten there, you go down all these stairs," Priscilla recalled in the interview.
"I tripped a little bit because I had these high heels on, and she started laughing so hard," the actress, 78, continued.
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"I started laughing. We hadn't even had a drink yet. She goes, 'Oh my God, Mom, you can't even have a drink."
The pair then sat down to order drinks before the evening took an ominous turn.
"Mom, my stomach hurts really bad," Priscilla recalled her daughter telling her, the pair then "immediately" getting up and leaving.
Since Lisa Marie's tragic passing at the age of just 54, Priscilla has been struggling to keep her head above the waves of her grief.
"Priscilla is inconsolable but she knows she has to pick up the pieces for Lisa Marie's girls," a close family insider told New Idea earlier this year.
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"She will do anything to help them get through this. It's a lot to deal with for someone Priscilla's age, but she insists she's up to the task. Really, she doesn't have a choice."
In a tribute of her own to her only child, Priscilla wrote that her little girl was "the most passionate, strong and loving woman."