Lyrics:

It's time to start.

Rock concert movement #1:
The basic head-bob.
Ready. Go.

Rock concert movement #2:
The one-armed fist pump.
Ready. Go.

In a moment, it will be time to execute rock concert movement #3.
Here are your instructions:
Step 1: Bend your knees, and then jump into the air.
Step 2: Let gravity bring you back down, and upon landing, rock your head forward.
Step 3: Repeat.
Ready. Go.

It's time to start.

Rock concert movement #4:
The behind-the-head leg stretch.
Ready. Go.