JS version of https://gist.github.com/vasilisvg/6300485

kick-it.html

<a href="http://causeyoucantyouwontandyoudontstop.com/" class="kick-it">Kick it!</a>

kick-it.js

(function(d) {

    var v = ['qORYO0atB6g', 'z5rRZdiu1UE', 'uvRBUw_Ls2o', 'BptQHAW2T5M', 'eBShN8qT4lk', '07Y0cy-nvAg', 'Xf1YF_MH1xc', 'evA-R9OS-Vo', 'ru3gH27Fn6E', 'Z6xsKsJqVyg', 'D4-F6QFcNxQ', 'XflfiylNNXY'],
        e = d.querySelectorAll('a.kick-it'),
        l = e.length;

    for (var i = 0; i < l; i++) {
        e[i].href = 'https://www.youtube.com/watch?v=' + v[Math.floor(Math.random() * v.length)];
    }

}(document));

// or minified
// (function(e){var t=["qORYO0atB6g","z5rRZdiu1UE","uvRBUw_Ls2o","BptQHAW2T5M","eBShN8qT4lk","07Y0cy-nvAg","Xf1YF_MH1xc","evA-R9OS-Vo","ru3gH27Fn6E","Z6xsKsJqVyg","D4-F6QFcNxQ","XflfiylNNXY"],n=e.querySelectorAll("a.kick-it"),r=n.length;for(var i=0;i<r;i++){n[i].href="https://www.youtube.com/watch?v="+t[Math.floor(Math.random()*t.length)]}})(document)

Ghehehe, fantastic!

I put up a smaller version over in a fork, and brought back comments to see what video ID is what song: Zegnat/6333616.