In Streisand’s case, it didn’t take long for Charles' crush to become a life-long friendship.

Streisand’s memoir details the musical icon’s first encounter with the prince in 1974.

So, I’m afraid I wasn’t as gracious as I should have been."

Prince Charles and Barbra Streisand talking

As for the pin-up poster?

That didn’t make it into their conversation.

Streisand wrote she had no idea that Prince Charles had a crush on her at the time.

Prince Charles and Barbra Streisand smiling

Streisand said she would’ve been more nervous had she known.

“I couldn’t resist adding, ‘Who knows?

If I had been nicer to him, I could have been the first real Jewish princess!'”

Prince Charles smiling at Barbra Streisand

The tongue-in-cheek bit became a mainstay of Streisand’s stage banter.

Streisand and the king still send one another birthday cards, often with hand-drawn illustrations and small gifts.

Something was going on, and [Princess] Diana knew all about it."

Per Andersen, this mid-1990s meeting startedCharles and Streisand’s rumored affair.