Catch a performance by stand-up comedian Katt Williams at the River Center April 21

This Saturday, head to the River Center to see the Katt with more than nine lives: Katt Williams. As a teenager, Williams set out on his own, moving from his native Ohio to Florida. In the late '90s, he rose to fame as a comedian and began performing in clubs throughout the nation. He went on to appear on BET's ComicView and in two comedy specials, Katt Williams: Live: Let a…