Prince didn’t keep everything he wrote for himself. He wrote “Manic Monday” for The Bangles, recorded and released “I Feel for You” in 1979—​Chaka Khan would later record her own version that became a hit—and conceived of the entire concept behind Morris Day & The Time. In fact, on their first record, Prince was The Time. Then there was “Nothing Compares 2 U,” written for another of Prince’s side projects, The Family. It didn’t do much for them, but a cover version by Irish singer Sinead O’Connor turned it into a global hit.