The actor shared memories of his “17 Again” costar in his speech.

“It really pushed me into the next chapter of my career.”

“And for that, thank you so much, Matthew,” he added.

Zac Efron, Matthew Perry

Zac Efron and Matthew Perry in ‘17 Again’.New Line/ Everett

“Thinking about you a lot today.

Perry died in October from an apparent drowningat his Los Angeles home.

Efron said last month that he would be “honored” to play Perry in a biopic.

Sean Durkin, Zac Efron, Miles Teller and Jeremy Allen White

Sean Durkin, Miles Teller, and Jeremy Allen White attend Zac Efron’s Hollywood Walk of Fame ceremony.Gilbert Flores/Variety via Getty

“He was a mentor to me,” Efron toldPEOPLE.

“I looked up to him.

I learned comedic timing from that guy.

To the delight of the audience, Efron also shouted outHigh School MusicaldirectorKenny Ortega.

“Go Wildcats.”

Watch Efron’s ceremony in full above.

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