Most streamed songs on Spotify 2014: Shift Ranking of December 312/03/2014December 3, 20141. Pharell Williams, Happy | 2. Clean Bandit, Rather Be | 3. Calvin Harris, Summer | 4. Katy Perry, Dark Horse | 5. John Legend, All of Me | Source: SpotifyCopy linkImage: Richard Juilliart/AFP/Getty ImagesAdvertisement