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.