'There's no greater feeling than to make you happy': The Rock buys his mother Ata Johnson a new house

Dwayne 'The Rock' Johnson is no stranger to generosity when it comes to his wealth, and his latest gift is one that brought tears to his mother's eyes.

Johnson, 50, surprised his mum Ata Johnson, 73, with a new home, and shared her tearful reaction to Instagram. Watch above.

"Love you mom and surprise!" Johnson wrote alongside the video, which shows his mum standing outside the house and walking through the front door as Israel Kamakawiwo'ole's 'Over the Rainbow' plays.

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"When I was a little boy, I hated when my mom would cry ~ these days, I'll happily take her tears of joy," Johnson's caption continued.

Johnson says his mother's new home took himself and a team of designers eight weeks to get ready, and when she walked through the front door for the first time, everything she saw was brand new.

"I've been lucky enough to have bought her a few homes over the years, but this one is special as she's told me over and over these past few years, 'After a lifetime of travelling, I want this home to be my last. That's my dream,'" Johnson explained.

"Mom, there's no greater feeling than to make you happy ~ welcome home 🏠❤️🌺 I always say, if you got a good mom then you got a shot at becoming a good, caring human being. Let's all give our mamas a big grateful squeeze this weekend and make 'em happy."

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Johnson then shared another video a few hours later, which showed his mother seeing her new family room for the first time, which was decorated with vintage ukuleles on the wall as well as photos of their ancestors, which the Hobbs & Shaw star says she hasn't seen since she was a child growing up in Samoa.

"She misses her mom and dad. I miss them too," Johnson said of the family room as his mother looks around the room slowly and covers her mouth in shock. "Thank you God for blessing me with a little bit of work ethic to make stuff like this happen. Enjoy your new home mom!! Break out the ukulele and let's 💃🏻🕺🏽😂🎶"

Lastly, Johnson shared a video of his mother walking into her new "Smackdown Room."

"In her homes she always has her 'Smackdown Room' where she keeps the coolest Rock/DJ memorabilia but over the years they've become insanely crowded – so for her new home, I had these cool built ins made and just added only a few memorabilia items – Posters, University of Miami game balls, movie awards, championship titles etc. Figured she can add whatever she wants from here," he said.

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Johnson says that while her Smackdown Room is her favourite room to bring guests to, it's his least favourite as the "last thing" he wants to do is stand around while his mother parades guests through what he has done with his life.

As she walks through the room, photos of Johnson throughout his career are plastered on the walls, and his awards are displayed in a floor-to-ceiling cabinet.

"But, truth is, when I'm BY MYSELF 😊, these Smackdown rooms she creates have such positive energy and beautiful mana. Always a good reminder for me to never forget where I came and always be grateful for grind," he said.

Johnson concluded with: "Welcome home mom ❤️"