Nancy Sinatra shares her favorite photo of herself and her “dear friend” Elvis Presley as a tribute.

In honor of Elvis Presley’s 88th birthday, which would have been today, Nancy Sinatra recalled the fun times they had together.

The 82-year-old singer and performer celebrated the rock ‘n’ roll legend’s birthday on January 8 by tweeting a vintage image of her and an adolescent Presley laughing hysterically together. In 1977, Presley passed away at the age of 42.

On his birthday, Sinatra wrote, “I’m thinking of my dear friend and wish he were still here to celebrate with us.” My favorite image of Elvis and me is this one. It demonstrates the joy and love we shared. Oh my God, I miss him so much.”