Sugarland’s Jen­nifer Net­tles has recorded Hank Williams’ “Your CHeatin’ Heart” for a Pepsi MAX tele­vi­sion ad, set to debut Sun­day dur­ing Super­bowl XLVI.  The ad, part of the company’s “cola wars” cam­paign, cen­ters around a sales rep for a com­pet­ing soft drink com­pany who buys a bot­tle of Pepsi MAX at a gro­cery store, wins a major con­test and is greeted by Regis Philbin. Pepsi is also spon­sor­ing a con­cert series in Indi­anapo­lis lead­ing up to the Super Bowl includ­ing “CMT Cross­roads: Steven Tyler & Car­rie Under­wood From the Pepsi Super Bowl Fan Jam,” pre­miers Sat­ur­day on CMT.