If you watch the Netflix show 'Russian Doll,' you hear the bouncy first notes of a song over and over again. What is it? Also in the news today: the Grammys will salute Dolly Parton, 'Hair' gets yanked as NBC's next live musical, Eddie Money wins a court ruling over his former drummer, UK music retailer HMV is saved, and two surprising facts about the history of pop hits. [Audio sampled: Jahzzar - "Comedie" (CC BY 4.0); BoxCat Games - "Against The Wall" (CC BY 3.0); Eddie Money - "Two Tickets To Paradise"; Bebe Rexha - "Meant To Be (feat. Florida Georgia Line)"; 'The Greatest Showman' Original Soundtrack - "A Million Dreams"; Harry Nilsson - "Gotta Get Up"]