Hockey legend Wayne Gretzky will become the first hockey player to lend his voice to ''The Simpsons,'' when he appears in an episode set to air next month. Gretzky, known as ''The Great One'' in hockey circles, won four Stanley Cups with the Edmonton Oilers before moving on to play for Los Angeles, St. Louis and the New York Rangers. The Oilers tweeted out a picture of the cartoon version of Gretzky, in which he has four fingers on each hand and yellow skin, just like other ''Simpsons'' characters. More...