Dark side of the Moon

  1. Chart Moves: Bruno Mars' Slow Climb to No. 1, Pink Floyd's 'Dark Side' Turns 40

    March 08, 2013 9:48 PM EST This past week on the Billboard 200 , Bruno Mars' "Unorthodox Jukebox" jumped to No. 1, thanks largely to sale pricing by Amazon MP3. The move gave Mars his first No. 1, and an unusual achievement: It was the slowest climb to No. ...