The most streamed tracks on Spotify Sept. 15 - 21. UNITED STATES 1. Meghan Trainor, "All About That Bass" (Epic Records) 2. Iggy Azalea, "Black Widow" (Virgin EMI Records) 3. Jessie J, "Bang Bang" (Republic Records) 4. Ariana Grande, "Break Free" (Republic Records) 5. Sia, "Chandelier" (RCA Records) 6. Sam Smith, "Stay With Me" (Capitol Records Ltd.) 7. Calvin Harris, "Blame" (Columbia Records) 8. Echosmith, "Cool Kids" (Warner Bros. Records) 9. Maroon 5, "Animals" (Interscope Records) 10. MAGIC!, "Rude" (RCA Records) UNITED KINGDOM 1. Calvin Harris, "Blame" (Columbia Records) 2. Lilly Wood and The Prick, "Prayer in C - Robin...

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