"Cha Cha Slide"

--DJ Casper

Wikipedia says: "The Cha Cha Slide" is a 1996 song/dance track sometimes referred to as the "Casper Slide". This song is often played at dance clubs, parties, skating rinks and weddings... The Cha Cha Slide is also a dance created by Chicago's DJ Casper, (aka Mr. C). Cha Cha Slide is a line dance with called instructions.

Forsberg says: C'mon, you know you've heard this one at a wedding or party function. You just follow along to what the DJ says, "Slide to the left, slide to the right, reverse, reverse." Well, mostly it's just to get people to clap their hands in rhythm during Celtics games.