Ice-cream maker Ben & Jerry's is set to give away 50,000 free iTunes Music Store downloads.

Ben & Jerry's shops across the US are providing customers with the means to register for online voting in the upcoming US presidential election. The first 50,000 to do so will each be able claim a free iTunes download, according to MacMinute.

Entrants can also register for a chance to win an iPod and iMac. The promotion takes place on April 27.

Even UK shoppers will benefit , with free Ben & Jerry's ice-cream on offer at participating shops.