The newbornsunique namepays homage to guitarist Rocky George, the boxing biopicRocky, and Barkers favorite number.

Practicing to my babys heartbeat, Barker captioned the video, which Kardashian later shared to her Instagram Stories.

Let them bring their drumsticks and Xboxes if they must.

Kourtney Kardashian and Travis Barker

Axelle/Bauer-Griffin

Childbirth is a marathon, not a sprint!

So much of parenthood is cringe!

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That wouldve driven me up the wall, another user wrote.

Kourtney has the patience of a saint.

Congratulations!!!!!

Hamming it up on social mediais what this pair of new parents do best.

And who can blame them?

[Kourtney] is happy to just be able to snuggle her baby boy now, an insidertoldPeople.

Rock on, Barkers.