Sheeran’s song ‘Thinking Out Loud’ may have hit 500 million streams on Spotify, but the song hit over 750 million views on YouTube, which is of course a huge amount more. But, not quite enough to enter YouTube’s elite Billion Views Club, which consists of the top 10 videos on YouTube, all of are music videos and all of which have at least one billion views. So why is it that Spotify is celebrating one song hitting 500 million plays, while YouTube has 10 music videos that all have over a billion views?