Jimmy Fallon cries as he and Dwayne Johnson reunite military family for Christmas

It's the time of year to spread some cheer.

And on Friday's episode of The Tonight Show, Dwayne "The Rock" Johnson and host Jimmy Fallon played Santa's helpers as they conducted a surprise for a military family so heartwarming it brought Fallon to tears.

Towards the end of his interview, the 44-year-old actor commented about giving back to the troops before amazing the audience and reuniting a family, Daily Mail reports.

Towards the end of his interview with Jimmy Fallon, the actor commented about giving back to the troops before amazing the audience and reuniting a family. Photo / The Tonight Show

"There is one more thing I would like to do before I leave tonight, Jimmy," the Fast & Furious star, who's a huge supporter of U.S. troops, teased, "I'd like to give back to a military family who's in the audience."

He and the 42-year-old comedian proceeded to search the audience for said military family - ending up backstage in the control room, where they find The Tonight Show's producer Karina Kabalan.

"I hear you're a producer of this show and you're an army vet," Johnson began, giving the shocked and confused producer a hug.

"I heard that you met your husband when you were both deployed in Iraq. And your husband's name is Todd and he is a master sergeant in the U.S. Air Force.

As Kabalan weeps and nods, Todd Kabalan - dressed in his distinguished uniform - sneaks up behind his wife. Photo / The Tonight Show

"And that you guys have been living apart for the past year and a half because he's 5000 miles away."

As Kabalan weeps and nods, Todd Kabalan - dressed in his distinguished uniform - sneaks up behind his wife.

Dwayne concluded, "What Jimmy and I wanted to do for you - we just wanted to thank you and your husband for your service and your sacrifice, and I personally heard you are the most amazing person.

Jimmy is seen starting to choke up as he witnesses the heartwarming reunion. Photo / The Tonight Show

"And we wanted to bring your husband home for the holidays. Turn around and hug your husband."

As the tearful husband and wife reunion commenced, Fallon was seen wiping his eyes and getting choked up, as he said, "Oh man, I'm losing it right now."

He later took to Twitter to reiterate the sentiment, tweeting: "I can't believe we pulled that off. I lost it."

I can't believe we pulled that off. I lost it. #FallonTonight

— jimmy fallon (@jimmyfallon) December 10, 2016

Jimmy and Dwayne Johnson Surprise 'Tonight Show' Staffer with ...

Jimmy and Dwayne The Rock Johnson pull off an epic surprise for Tonight Show staffer and Army vet Karina by bringing her husband and Air Force sergeant, Todd, home early for the holidays.

Posted by The Tonight Show Starring Jimmy Fallon on Friday, 9 December 2016