The actor officially extended an invite for Gabriel "Tater" Singleton, a 7-year-old boy battling stage four neuroblastoma, to visit him on the set of the Baywatch reboot after the Tennessee resident launched a campaign to meet Johnson.
"Tater! Guess what buddy? I'm coming to meet you!!" Johnson wrote on Instagram Wednesday. "I want you to be my special guest on our #BAYWATCH set in Savannah, GA. Everyone on set is excited to meet you... especially the pretty girls!"
In Singleton's original, viral Facebook plea – shared through the Children's Hospital at Erlanger – a handwritten sign explained why the cute little boy wanted to meet the 43-year-old.
"I think you are strong, but I am very strong too," Singleton's sign read. "I've been struck by hundreds of needles, have had TONS of shots, gone through 8 surgeries, too many blood and platelet transfustions, lots and lots of chemo treatments, radiation therapy, tests, scans and 2 stem cell transplants."
The message continued, "you inspire me with your positive attitude."
Johnson wrote on Wednesday that he is "super pumped" to meet Singleton, and added, "I'm a big, bald-headed LUCKY DUDE to meet you as well."
"Big man you're way stronger than I'll ever be and you better get ready, because I hug like a bear," the father of two wrote. "Can't wait to meet you Tater and your family big man! Stay strong!"
According to an interview with local news outlet WTVC, Singleton was diagnosed with cancer at age 3 and is currently receiving treatment focused on his bone marrow.
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"PS: Your nickname 'Tater' is almost as cool as 'Rock,' " the actor added in his post. "Actually it's way cooler."
After Johnson issued the invite, Singleton's family expressed their gratitude through his Facebook, writing "Thank you god for this huge blessing."
The Baywatch movie, which also stars Zac Efron, began filming last month.