The name they chose for their son is just about as interesting as their daughter's name. Ace means one, and is on a huge upswing since the start of the century (it's just about to crack the top 500). The most famous bearer of the name is KISS guitarist Ace Frehley, but a few celebs besides Jessica Simpson chose it for their sons as well.
Middle name Knute was chosen in homage to Johnson's grandfather—it's a Norse name that means knot, and its most famous namesake is Knute Rockne, the top Notre Dame football coach.
It's a cute, but very short-and-sweet name—and one with a soft edge, thanks to the soft C in Ace and the n sound of Knute.
Are you a big fan of Jessica Simpson's new son's name—or do you think she went a little too offbeat yet again?