K-Ci and JoJo broke away from the well-know and wildly popular '90s group, Jodeci and set ablaze the world of R&B as we knew it! "Crazy" was a huge hit in 2000 and a massive crossover song for the soulful duo. The song the first single from their album entitled, X, and was even featured as one of the main tracks for the movie Save The Last Dance with Julie Stiles and Sean Patrick Thomas.Watch: K-Ci & JoJo 'Crazy'