Paris Jackson opened up about her first proper concert experience while appearing on The Tonight Show Monday night (March 20).

The daughter of Michael Jackson admitted to host Jimmy Fallon that her first concert was High School Musical: Live On Stage!, where Zac Efron inadvertently broke her pre-teen heart.

"He actually wasn't there," Jackson lamented to Fallon about the Disney Channel heartthrob. "I was so bummed! He wasn't there, he was filming that movie with horses."

The actor was instead replaced by Drew Seeley, who, according to the young actress, was no Efron.

"Did he look like Zac?" Fallon asked, to which Jackson shook her head no.

"That was, like, the most depressing part about it. He wasn’t there, and I was, like, this heartbroken 10-year-old," she added.

Watch her interview, below:

High School Musical Cast: Then and Now