1. Weekly Chart Notes: Baauer's 'Harlem' Begins To 'Shake' Up Radio

    March 08, 2013 6:15 PM EST After the song logged more than a quarter-billion U.S. streams the past three weeks, radio is joining in on the viral craze. Is radio getting ready to dance to the "Harlem Shake" at last? Airplay still accounts for less than 1% of the song's overall Billboard Hot 100 chart…