jQuery Sparkline Pie Chart Labels

HTML

<script src="http://omnipotent.net/jquery.sparkline/2.1/jquery.sparkline.js"></script>
<p>
Sparkline appears here: <span id="sparkline">&nbsp;</span>
</p>

JavaScript

// jsfiddle configured to load jQuery Sparkline 2.1
// http://omnipotent.net/jquery.sparkline/
// Values to render
var values = [1, 2, 3,4];

// Draw a sparkline for the #sparkline element
$('#sparkline').sparkline(values, {
chart:{
  width:100,
    height:70
},
    type: "pie",
  
    // Map the offset in the list of values to a name to use in the tooltip
    tooltipFormat: '{{offset:offset}} ({{percent.1}}%)',
    tooltipValueLookups: {
        'offset': {
            0: 'First',
            1: 'Second',
            2: 'Third'
        }
    },
});