I am informed

whispercricket: "My car is a wonderland."
Me: "It is full of buttons!"
whispercricket: "And if she pushes the right one, it LIGHTS UP and there is MUSIC, and if she twiddles the little knob it DOES THINGS."

So apparently KJ climbed into whispercricket's car, turned it on, turned on the radio, found a station playing Van Halen, cranked up the volume, and rocked out.

My kid!