“Had to wish my guy who loves made-up holidays more than anyone a HAPPY NATIONAL SIBLINGS DAY!! ️🫶🏻,” Travis wrote in an email.

Travis Kelce is showing love to his older brother on National Siblings Day.

On Wednesday, April 10, the 34-year-old Kansas City Chiefs tight end posted a TikTok video celebrating Jason Kelce with a collection of endearing childhood clips.

The video, set to Kygo and The Chainsmokers’ song “Family,” begins with footage of the two as babies playing in Teenage Mutant Ninja Turtles onesies.

Another clip shows the two tackling one other under the night sky. “Down 10, hut,” one of them is heard saying.

Travis showed clips of them growing up and dancing in a locker room, riding a camel, showing off Halloween costumes, and swimming laps in a pool.

Some of their more recent moments were also featured, including a footage of the two cuddling after the 2023 Super Bowl and a clip of Jason, 36, thanking Travis after the Chiefs defeated the Ravens, clinching their berth in the 2024 Super Bowl (which they won).

“Had to wish my guy who loves made-up holidays more than anyone a HAPPY NATIONAL SIBLINGS DAY!! ️🫶🏻,” said Travis in the post.

Jason and Travis Kelce’s childhood photo.

In an interview with PEOPLE in January, their mother, Donna Kelce, revealed that Travis and Kelce are “each other’s biggest fan.”

“We are very, very small.” We are close-knit. “We stick together and try to help each other as much as we can,” she stated of her family.

Travis and Jason Kelce’s childhood video clip.

When Jason announced his retirement from the NFL in March, Travis was overtaken with emotion as his older brother spoke about their close friendship.

“I wouldn’t be here if Travis and I didn’t have this link. “It made me stronger, tougher, smarter, and taught me the values of cooperation, loyalty, patience, and understanding,” Jason stated in his retirement address.

Travis later discussed his brother’s choice to retire from the NFL in an episode of their New Heights podcast.

Jason Kelce and Travis Kelce attended a Cleveland Cavaliers game in March.

“You’ve always been one step ahead of me in this game. “It’s always felt like I had that flotation device right there,” he said Jason. “Without you, dude, it feels hollow. “It definitely feels complete.”