Some of the most iconic Hollywood "it" couples started as costars. This is where Mason Thames and Mckenna Grace enter the chat.
They're set to star alongside each other in Green Day's new movie, NIMRODS. The punk-rock comedy will hit theaters on August 14, and it's the second time they've shared the big screen. This time around, they're portraying Tommy and Olivia. There's a wild cross-country road trip, and it's all for the opportunity of a lifetime: the chance for Tommy's up-and-coming band to open for Green Day.
But if you're curious about how these two young lovebirds got together IRL, here's their full relationship timeline:
How they met: Mason and Mckenna first crossed paths in an Uber. They were on the way to see a movie, but sparks were definitely flying. "We just clicked immediately," he said. "And ever since then, we just hung out all the time."
In August 2024, Mason and Mckenna are confirmed to costar in the film adaptation of Colleen Hoover's Regretting You, and make their first public appearance at Netflix's Incoming House Party.
In September 2024, they rock out together at a Green Day concert.
In March 2025, filming officially begins for Regretting You.
In April 2025, Mckenna and Mason share a kiss on TikTok, leaving fans wondering if it was actually a soft launch.
In April 2025, they attend an NBA game with Regretting You costar, Dave Franco.
In May 2025, Mckenna shares an IG post with a photo of her and Mason looking awfully cozy.
In June 2025, they're spotted holding hands in NYC — just look how hard these two are cheesing!
In July 2025, Mason celebrates his 18th birthday with Mckenna and his family. "She's so funny and such a nice person, so she gels with everybody," he said.
In August 2025, Mason talks about his experience working with Mckenna. "She is such a star, and she's such a warrior. I've never met somebody with a work ethic like hers," he said. "She pushes herself every day harder and harder, and she's so incredibly talented. So just watching that, it really motivates me."
In October 2025, they look totally adorable during their puppy interview, talking about their first impressions of each other, how they spend time together, and more.
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In October 2025, they look drop-dead gorgeous in coordinated fits as they walk the red carpet for the premiere of Regretting You.
In November 2025, Mason gushes about Mckenna in an interview. "She's such a fantastic actress. Seeing her onscreen is different than watching her do her thing," he said. "And she's the closest person to me. So getting to do that with her was really, really special. Just getting to promote it and the whole process itself was something I'll never forget."
In February 2026, they officially hard-launch their relationship when Mason posts an IG carousel that ends with Mckenna kissing him on the cheek in front of the Eiffel Tower. Swoon.
And Mckenna responds with this lovable comment:
In March 2026, they're dressed to impress as they turn the Oscars into date night.
In March 2026, Mckenna shares an Oscars photo dump, and Mason is all heart eyes for his lady with this cutesy one-liner.
In June 2026, they pack on the PDA for Mckenna's 20th birthday.
In August 2026, Mckenna and Mason star together in NIMRODS, which hits theaters on August 14.
What's your favorite Mason and Mckenna moment? Drop your pick in the comments!
Discover the raw, electrifying story behind the kings of pop-punk. NIMRODS (the highly anticipated Green Day Movie) hits theaters worldwide THIS FRIDAY. Get Tickets Now!
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