Ed Sheeran is mobbed by shoppers at Hertfordshire supermarket as hundreds gather to watch him serve up pizza and his new hot sauce during latest surprise appearance<br /><br />Ed Sheeran was mobbed by hundreds of fans as he made yet another surprise appearance on Tuesday - this time at a Sainsbury's store to promote his Tingly Ted's hot sauce.<br /><br />The singer, 33, turned up at the London Colney store in Hertfordshire delighting those merely popping out for a low-key midweek shop.<br /><br />Tingly Ted's - owned by Heinz - was launched last March and offers two sauces - 'Tingly' and 'Xtra Tingly' and retails for £3 a bottle.<br /><br />He pulled up in a bright orange branded truck shocking locals and was serving up slices of pizza with the sauce on - all with a huge smile on his face.<br /><br />For fans he signed everything from blocks of cheese and CDs to kitchen roll - which has since been put on eBay - with the sauce as special momentos for those who visited the pop up van.