Giving new meaning to the term "excruciating exercise," the latest fitness fad has spin fans putting their vocal chords through a workout while they cycle off last night’s cheeseburger.

As a video jukebox at the front of the class blasts out everything from ’80s pop classics to hi-energy rock anthems, microphones are passed from bike to bike. While this might be lots of fun for some, we maintain that there’s only one thing more painful than a thigh-burning spin class: having to do it the sound of fellow spinners breathlessly belting out “Eye of the Tiger”.