Shockers are a sour and chewy version of the popular candy SweeTarts. They were originally called Shock Tarts and were made by the Sunmark Candy company in the early 1990s. Shock Tarts were discontinued but then rereleased and as "Shockers" under the The Willy Wonka brand. Why are the called Shockers? Try one and you will see. Update: In mid-2015 the name was changed to Sweetarts Chewy Sours.