One-half of the popular American comedy team Abbott and Costello, Lou Costello was beloved by millions as the hapless, good-natured sap whose fireplug physique and manic energy hilariously played off Bud Abbott's fast-talking wise guy persona. Costello's career in vaudeville took off only after his pairing with Abbott, a fellow performer and talent promoter. Growing recognition on the stages of New York in the 1930s eventually led to a guest stint on a widely-heard national radio program, followed by their first film as a team, "One Night in the Tropics" (1940). With the massive success of their sophomore effort, "Buck Privates" (1941), Costello and his partner became two of the biggest movie stars of the wartime era. More hit films like "Pardon My Sarong" (1942), "In Society" (1944) and "The Naughty Nineties" (1945), combined with a popular radio program of their own, kept them at the top of the entertainment heap, despite critical dismissal of their oeuvre as being decidedly lowbrow. The comedy-monster mash-up "Abbott and Costello meet Frankenstein" (1948) marked not only the beginning of their repetitive "Abbot and Costello Meet " phase, but also of their over-exposure and consequent slump in popularity. The comedy "Dance with Me, Henry" (1956) marked their final film appearance together before the team split in 1957 and Costello passed away two years later. As a testament to the simple genius of Abbott and Costello, their most famous comedy bit, "Who's on First?" was enshrined on video at the Baseball Hall of Fame.