'When they hear it, most people start dancing, even walking down the street.'

Toronto dancer-choreographer Tre Armstrong says it's irresistible. Just as the Twist started with Chubby Checker's hit song, disco was unleashed on the masses by the movie Saturday Night Fever and Billy Ray Cyrus's 'Achy Breaky Heart' had everyone line dancing like a cowboy, a YouTube 'Single Ladies' video has sparked this latest dance craze. Lots of people don't feel confident dancing freestyle.' 'Whenever a new dance comes along, I like it.

The last dance-along craze was the Macarena back in the '90s. He says high school and college kids are usually the ones requesting 'Single Ladies (Put a ring on it)', from Beyoncé's hit CD I am.

'It's been a long time since a new dance came along,' says DJ Jason Gerecht, operations manager of Disc Jockeys Unlimited. With that shout-out to the sisterhood, Beyoncé unleashed a phenomenon that has become the first major dance craze of both the new millennium and the Internet.

Music videos beyonce single ladies