JavaScript: How to Get the Values from a Multi-Dimensional Array?

Question

I'm trying to get the values from a multi-dimensional array. This is what I have so far.
I need the value of 99 and the image when I select the first option in the array, e.g. "Billy Joel".

var concertArray = [
    ["Billy Joel", "99", "equal.png"],
    ["Bryan Adams", "89", "higher.png"],
    ["Brian Adams", "25", "lower.png"]
];

function populate(){
    for(i = 0; i < concertArray.length; i++){
        var select = document.getElementById("test");
        select.options[select.options.length] = new Option(concertArray[i][0], concertArray[i][1]);
    }
}