Prince performs during the halftime show of the NFL's Super Bowl XLI football game between the Chicago Bears and the Indianapolis Colts in Miami, Florida, on Feb. 4, 2007. Celebrities and musical artists spoke out online Thursday to pay tribute to musical icon Prince, calling the singer and multi-instrumentalist a "musical genius," "a visionary musician and artist" and "a true legend." The singer's publicist Yvette Nelson-Schure told the Associated Press that Prince died at his suburban Minneapolis home Thursday. Many expressed admiration for Prince's musical abilities and his legacy as an artist. He was a true legend and a musical genius!