사물놀이(Samulnori) is a genre of traditional percussion music originating in Korea. The word 사물 means "four objects" and 놀이 means "play" 사물놀이 is always performed with four traditional Korean musical instruments. (Wikipedia) Let's get straightforward. I'd say "사물놀이" is "haveing fun, rock'n roll" with four instruments. You got it? If you see the video below you mgiht see how much they enjoy themselves during whole performance.