Mariah Carey Tweeted several Instagram photos of herself voting on Election Day on Nov. 6, 2012, saying: &#39;Pon de line, ooooh it&#39;s early! Haaaaa #Obama2012&#39; and &#39;Let your vote be heard!! Four more years!&#39;  <span class=meta>(instagram.com&#47;p&#47;RsjBnzLePf&#47; instagram.com&#47;p&#47;RsiIHwLeOz&#47; instagram.com&#47;p&#47;RsilVbrePK&#47; twitter.com&#47;MariahCarey)</span>
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