Did you know that Washington, D.C. played host to one of Prince's most unique and inspiring performances? At the very pinnacle of his fame during the massively popular "Purple Rain" tour in 1984, Prince — the singular musical genius who masterfully blended rock, R&B, jazz, funk and pop — stopped to play a free concert for 1,900 students at Gallaudet University — the world-renowned school for the deaf — and 600 special needs students from D.C.-area schools.