Here come the waterworks.
“Aquaman” star Jason Momoa made a big splash for Dwayne “The Rock” Johnson’s daughter, Tiana Gia, on her third birthday.
And her tickled reaction was enough to make even a more than 6-foot-tall musclebound superhero cry.
“Yay!” a giddy Tiana cheered after watching a special video message from Momoa, 41, on her birthday Saturday.
Johnson, 48, shared an Instagram clip of his youngest daughter jumping up and down as the hulking water-warrior promised to take her and big sister Jasmine, 5, swimming and surfing at the beach in celebration of her turning 3.
“I’m sorry I couldn’t be there, but I love you and tell your papa that I love him too,” said Momoa — who starred as the half-waterborne and half-human avenger in the 2018 DC Extended Universe film.
Noting that Tiana is “OBSESSED” with the Nickelodeon Kid’s Choice Award-winner as “Aquaman,” Johnson called in the favor to Momoa on her birthday because that’s “what [daddies] do.”
The gregarious Momoa himself commented on Johnson’s video of Tiana’s reaction to his sweet birthday salutations.
“What an honor. We do it for our babies. For the next generation,” he said. “Happy birthday baby tia. See u [in] Hawaii” — which is where he and Johnson both have roots.
In his own birthday tribute to the toddler, Johnson — who voiced seafaring demigod “Maui” in 2016 Disney classic “Moana”— joked that the waves of his resume were completely washed out by Tiana’s much more important inquiry — “Daddy do you know AquaMan?” — on her big day.
Early on in the coronavirus pandemic, the former WWE wrestling champ-turned-beefy-blockbuster-frontman repeatedly tried convincing Tiana that he was the man behind “Maui” by singing the animated character’s biographical song “You’re Welcome.”
But the kid wasn’t buying it.
“Tia, is Daddy Maui?” Johnson asked after singing to daughter in April 2020.
“No,” the then-two-year-old immediately shot back.
The quick-witted tike swiftly humbled her dad again Sunday when he asked: “Who’s cooler? Daddy or…,” she interrupted by yelling “Aquaman” before Johnson could finish his question.
Despite being slighted by his own flesh and blood — a tragic theme of most superhero tales — Johnson said his daughter’s Aquaman love makes his “soul laugh and heart smile.”
However, he did scoff after Tiana forced him to draw a picture of Aquaman to be framed and displayed on a wall in her bedroom.
Johnson is set to make his DC Extended Universe debut as the DC anti-hero “Black Adam” in July 2022. Meanwhile, Momoa will once again take up the Trident of Neptune in “Aquaman 2,” which is slated to premiere in December 2022.