And he captioned the new baby photo in German, for some reason.
Other inspirations include a princess, a Canadian actor and the great outdoors.
Well, that's definitely easier to pronounce.
The Canadian singer recently raised eyebrows when she revealed she had chosen to name her son X Æ A-12.
And the baby's birthday is cosmically perfect.
What the heck does it mean?
The options are numerous and creative.
The baby formerly known as Gene Attell can now look forward to a gentler transition to schoolyard life.
The "Dawson's Creek" star and his wife might raise her in Canada.
Any parent who names their kid Splinter gets ALL our respect.