Karaoke-ride, a new fitness fad that combines spinning and karaoke, has hit the US.

"It gets you off the treadmill. It gets you off the normal elliptical, kind of breaks you out of your element and the music just gets everyone's heart pumping," says one participant.

Instructors say they aim to entertain people while they work out.

Al Jazeera's Stefanie Dekker reports.