Dwayne 'The Rock' Johnson got emotional as he filmed a video message for a young fan

The 'Baywatch' star said in the Instagram video: "This is for Taitusi.

"You're a big fan of mine and I've been shooting -- we're here in Las Vegas, we're shooting downstairs on the set of 'Ballers', and they just came to me and said, 'Hey, Make-A-Wish just called and you have to make this video for Taitusi.' "

He then clearly got choked up and continued: "Look, you're there in Hawaii, I'm here in Las Vegas, I wish I could be there with you. I wish we could hang out and talk like your wish was.

"I want you to know, Taitusi, I know so much about you already.

"You love chicken, I love chicken. Your favorite colour is red, I love red. You love to play 'Call of Duty,' I suck at 'Call of Duty.' You love pancakes, I love pancakes. Your favourite treat is Rice Krispies treat.

"I want you to know, even though I'm not able to see you and be with you, I want you to know you're already one of the most amazing and coolest kids I've ever spoken to. You are stronger than I will ever be."

He then urged the youngster to "stay strong" and vowed to have a special snack in his honour.

He added: "This weekend I'm going to have Rice Krispies treats in your honour. Alright brother. Love you!"

The former wrestler hailed the youngster as an inspiration in the caption for his post.

He wrote: "Even though we've never met, I can already tell you're one of the coolest and most amazing kids I've ever talked to like this. I just want you to know how amazing and special of young boy you are. You inspire every single person around you right now. Including me.

"God bless you and your family. Alofa atu, DJ.(sic)"