作词：Jack P Johnson, Josef Myrow

Keep cool, fool if you don't know what you're doin'
Keep cool, fool 'cause you don't know what you're doin'
Keep cool, fool 'cause you don't know what you're doin'
Or else you're gonna bring somebody down

Keep cool, fool if you don't know what you're sayin'
Keep cool, fool 'cause you don't know what you're sayin'
Keep cool, fool if you don't know what you're sayin'
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Or else you're gonna bring somebody down

Thinking twice, you'll find it better to be big than small
Speakin' nice or just like Humpty Dumpty on the wall
Crash, you're gonna fall

Keep cool, fool if you don't want any trouble
Keep cool, fool 'cause your trouble will go double
Keep cool, fool or you'll blow up like a bubble
Or else you're gonna bring somebody down