Paris Jackson Reveals Why Zac Efron Once Broke Her Heart

She was 10 at the time.

Paris Jackson is revealing she had a childhood crush on none other than Zac Efron.

Read: Janet Jackson's Ex-Sister-in-Law Apologizes Over Singer's 'Secret Daughter' Controversy

Wearing a short, polka-dotted black dress, the daughter of the late Michael Jackson told Jimmy Fallon on "The Tonight Show" about going to see "High School Musical Live!" as a kid.

The show was the first concert she wanted to see, she explained, but her excitement soon turned to heartbreak when she realized Efron would be missing from the show because he was filming a movie.

Read: Michael Jackson Impersonator Wins Ultimate Gig - Playing the 'King of Pop' in Biopic

“I was a heartbroken 10-year-old,” she said. "He actually wasn't there. I was so bummed! That was the most depressing part.”

Fallon cheered her up with a game of egg Russian roulette.

“I’m so nervous,” said Jackson, before squashing the raw egg on her face.

Watch: Former Sister-In-Law of Janet Jackson Apologizes For Secret Child Claims