Fifty years ago, Billboard launched a revolutionary music chart called the Hot 100. Billboard's Hot 100 Trivia Game captures 50 years of music facts, designed to appeal to both passionate and casual music lovers. Played in a fast-paced team format, Billboard's Hot 100 Trvia Game creates a party atmosphere. It has 2,880 questions in four categories: Who Sang It?, Finish The Lyrics, Who Am I?, and Grab Bag. Launch date: March 15, 2009.