Robin Thicke's "Thin Blue Lines" tops the Spotify US and UK play charts. Avicci's "Wake Me Up is the most viral track in the U.S, and Daft Punk take the UK viral honor. Aviccie takes the viral honors in France, but Stromae is the most played. The Spotify Top 50 is the top 50 most-streamed songs of the previous week, market-by-market. The Social 50 is the top 50 most-shared songs - those that have been most shared with other Spotify users, including via Facebook and Twitter.