In February, The Wall Street Journal predicted that Apple (NASDAQ: AAPL) could overtake Spotify (NYSE: SPOT) in paid U.S. subscribers as soon as this summer, based on the trajectories of each music-streaming service's respective user bases. Apple Music had an estimated 36 million paid subscribers globally at that time. In the months since, Apple Music hit 40 million paid subscribers, and Spotify successfully went public via a direct listing, disclosing to investors for the first time details regarding its user base.Apple Music may have just fulfilled that prediction, right on schedule.Image source: Getty Images.Continue reading