"Welcome to Mardi Gras in the Astrodome. . ." That was how Sammy Kershaw greeted the 43,000-plus fans the night of his 40th birthday. Kershaw was there to play the Houston Livestock Show and Rodeo but brought part of his Cajun roots with him. Not only was it his birthday, but it was also Fat Tuesday. The Mardi Gras Mambo King thrilled the crowd after his show by throwing beads and candy as he was driven around the arena after his performance.