Darlene Vogel joked that she was Sir Elton John's "beard" when they went clubbing in the 1980s.
The 63-year-old actress enjoyed a night out with the 78-year-old music legend because he was "very good pals" with the manager of her Back to the Future Part II co-star, 59-year-old Ricky Dean Logan.
Appearing on the latest episode of The Patrick LabyorSheaux podcast, Darlene recalled: "We went to go see Elton John at Le Dome, and we're hanging out with him.
"And Elton's like, 'Well, where should we go now?' And I said, 'Why don't we go to the China Club?'
"So we all hop in his limo, and I'm with Elton John, going to the China Club in Hollywood, hanging out with him. He gets up on stage, blows Michael Bolton off the stage, and starts performing, and I'm hanging out with him.
"And then we leave, and Elton has his arm around me, and he's like, 'Got to keep up the image, darling.' I'm like, 'Use me.'
"There was no paparazzi, no iPhones at the time, and I was like, dang, I was hanging out with Elton John. I was his beard."
The Pacific Blue star adored being in the company of Elton - who came out as bisexual in 1976 and then gay in 1992.
She said: "He was so nice. He was great.
"I felt like I was just hanging out with a buddy. I didn't even understand that it was Elton John. I was like, 'Oh, OK, cool.' I don't get really shocked when I hang out with a famous person."
However, Darlene would be "gobsmacked" if she met 64-year-old former US President Barack Obama.
She said: "I think the only one where I would be gobsmacked at would be like Barack Obama because I love him so much."
And the star felt weak when she once saw Miami Heat president Pat Riley, 80, in Las Vegas.
She shared: "I remember when I saw him in Vegas once, and my knees buckled. I was like, 'Riley!'
"I love Pat Riley."
