Thunder

Thunder is a music video that was played in the episode "Jack's Big... Oops!"

Transcript[]

I want every genre to stand and revolt to this

Let's do it

Grab your strings

Your mikes (your mikes)

Your guitars

Whatever you got

All the strings

Let's get hoppin!

(Let's go)

Let's step!!

Yeah yeah

Alright, this is the part of the song that breaks down

You know

Grab that special way you bring on the dance floor (uh huh)

And now rock that with no strings

Bring the beat back!

A "thunder" refers to a loud rumbling or crashing noise heard after a lightning flash due to the expansion of rapidly heated air. It is commonly associated with the color yellow, which may explain the background in the music video.
It is the only song from the Music Machine that is instrumental.
The background is plain yellow, with various ring effects to the ground.
The year before the episode aired, they performed this song at the debut of the redesigned Cadillac CTS at the North American International Auto Show in Detroit. It was also featured by CBS during the 2007 NCAA Tournament, and in the 1st episode of the television series The Black Donnellys and was used in various television commercials.
The song being played in that episode reflects that Jack and Mary need to fix the hammered dulcimer, since the music videos is about strings.