The two appeared together in West Hollywood earlier this month to celebrate Elvis' birthday.
Riley Keoughis remembering her mom.
She kept her tribute simple, captioning the image with a heart emoji.
Riley Keough and Lisa Marie Presley in 2017.Neilson Barnard/Getty Images
“They were really adorable together.
They were side by side the entire night,” Formosa Cafe owner Bobby Greentold PEOPLE.
Keough’s brother, Benjamin,died by suicide in 2020.
You are so loved, my Ben Ben."
