The chart-topping Kelces! Travis and Jason's Christmas song reaches No. 1 on iTunes as the Eagles center and wife Kylie release their adorable holiday card

Travis and Jason Kelce's Christmas song has reached No. 1 on the iTunes charts just a day after it was released.

'Fairytale of Philadelphia,' which features both brothers singing, was released Wednesday and has already proven to be extremely popular among fans.

'This is incredibly humbling, thank you to all for supporting!!' Jason wrote on X.

Fans were amazed by Jason's voice, comparing it to the one of American musician Tom Waits, who sings jazz, blues and rocks among other genres

Jason and Travis also showed off their vocal talents by signing Toby Keith's 1993 country hit, 'Should've Been a Cowboy', on the latest episode of their podcast, 'New Heights.'

A day later, Jason and his wife shared their family's holiday card with TODAY.com.

In the picture, the couple is seen standing in their backyard with their three daughters, Wyatt, 4, Elliotte, 2, and Bennett, eight months.

The family's two dogs, Winnie and Baloo, are also seen in the adorable snap.

Jason and Travis will face off this weekend when the Eagles visit the Chiefs.

Both squads were on bye last week, with Jason travelling to Chicago to participate in the Thursday Night Football broadcast for Prime Video.

Jason visited Wiener Circle with former offensive lineman (and Prime Video analyst) Andrew Whitworth, and he was fully prepared for the spot's reputation for trash-talking its customers.

'Everyone told me when we were going there, Poochie is gonna tear you to pieces. I looked through the window and I saw she had a little bit of a gap - not as big as Michael Strahan's but it's a big gap,' he said on New Heights, referring to the former Giants star's iconic gap tooth.

'And I was like, I'm gonna hit her with this one right away.'

Travis, meanwhile was spotted in Buenos Aires, Argentina, supporting girlfriend Taylor Swift in the latest part of her 'Eras' tour.