an Entity references as follows:
"You Don't Know" is a song by American band Berlin, which was released in 1986 as the third single from their fourth studio album Count Three & Pray. It was written by John Crawford and produced by Andy Richards, Bob Ezrin and Berlin. It reached No. 39 in the UK and No. 16 in Belgium. A music video was filmed to promote the single, which gained breakout rotation on MTV.