public void upvoteMult(TrackInstance track, Context context, Response.Listener<JSONObject> listener) {
        JsonObjectRequest req = new JsonObjectRequest(Request.Method.POST, String.format("https://sparty-web.herokuapp.com/%s/%s/upvotemult", track.getPartyID(), track.getTrackID()), null, listener, basicErrorListener);

        SpartyRequestQueue.getInstance(context).addToRequestQueue(req);
    }