Philadelphia, Pennsylvania - Travis Kelce and Taylor Swift have shown their love for Jason and Kylie Kelce's newest bundle of joy!

On Tuesday, the 33-year-old mom took to her Instagram to announce the birth of Finnley "Finn" Anne Kelce over the weekend.

The sweet post, which featured four adorable snaps of the newborn, earned a like from both Taylor and Travis.

"Finnley!!!" the 35-year-old Kansas City Chiefs star gushed in the comments, along with a few heart-eyed emojis.

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The following day, fans got to see Travis meet his newest niece on the latest episode of the New Heights podcast.

Kylie made a surprise appearance holding baby Finn as Jason introduced her to his brother for the first time.

"Hey, little muffin! Look at you," Travis said. "You hanging out with Mom? Tell Ky I said hello. I'm glad everything's going great."

Finn is the youngest of four daughters that Kylie and the 37-year-old former NFL center share.

The littlest Kelces have gotten to enjoy the perks of their uncle's romance with Taylor Swift, as their parents brought them along to the 35-year-old pop star's performances in London last summer.

In February, Kylie dished on how she first found out about her brother-in-law dating the Grammy winner, confirming that she and Jason "knew before everyone else knew."