Heartthrob Zac Efron has revealed that he once shared an emotional phone call with the late King of Pop, who rang him while he was having dinner with Jackson's director friend Kenny Ortega, who worked on the 'High School Musical' films, which Efron starred in. 

Speaking about the fond memory, the actor explained that he was overcome with feelings at hearing Michael Jackson's voice over the telephone and couldn't hold it together well enough to have a proper conversation:

"One time I was at dinner in France with the cast of High School Musical 3... and Kenny got a phone call from the other end of the table, and he answers it and he looks at me... and he goes, 'I got somebody who wants to talk to you... Come here Zac,' and I grabbed the phone."

"I go, 'Hello', and he goes, 'Who's this?' and I said, 'It's Zac', and he goes, 'This is Michael, hi'. I just started crying, I don't know what to say, my mouth won't work... I'm just going, 'I have so much I wanna say (to you). You're the reason...' and I start crying. It was a short conversation. He goes, 'Thank you, thank you...' and I hang up and handed the phone back to Kenny. Kenny's like, 'Wow, you messed that up'."

Efron went onto add that he was able to redeem himself because the 'Thriller' icon called back moments later and they went on to have a chat: "He goes, 'Wait, is this Zac?' and I go, 'Yeah!' and he goes, 'Zac, hi, I didn't know who I was talking to'. I go, 'You know who I am?' and he goes, 'Yes, I love you'. And I'm like, 'Oh my God, don't say that to me...! You're the reason I'm in music, you're the reason I do what I do, you've been the inspiration to me since I was a little boy... I love you', and I started crying again."

Watch Efron appear in a funny skit below: