The Rabbit Song!
There is an old Soviet comedy from 1969, the Diamond Arm, about a mild-mannered family man who gets tangled up in a web of international smuggling. A cast containing diamonds was placed by accident on his arm, so now the smugglers want them back. He is taken to some restaurant, to get him drunk, to make things easier. He gets up to sing and causes a riot.

The song is about two rabbits who go to an oak forest to work a charm. If they nibble the grass three times in the face of danger, they will grow brave.

http://www.youtube.com/watch?v=AyIIGAy6s40