The name of the littlest member of the KarJenner clan will bedrumroll pleaseRocky.

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And 13 is just the greatest number of all time.

Kourtney Kardashian and Travis Barker

Axelle/Bauer-Griffin

It’s either Halloween or like the first week of November, Barker said.

But knowing this couple, a spooky birthday and aRocky Horroresque moniker would be right on brand.