Stretch Armstrong
... that ska-crazed dancers at a Stretch Armstrong concert once became so intense that three people left on stretchers and one in a hospital helicopter?
... that ska-crazed dancers at a <b id="mwAtI"><a href="./Stretch_Armstrong_(ska_band)" id="mwAtM" rel="mw:WikiLink" title="Stretch Armstrong (ska band)">Stretch Armstrong</a></b> concert once became so intense that three people left on stretchers and one in a hospital helicopter?