It's been a busy year for music, as evidenced by the eclectic tracks that have proven most popular on Spotify. While 2013 saw Miley Cyrus dominate the news cycle and Kanye West stir up more controversy than his soon-to-be wife could even begin to calculate, the 10 most frequently streamed tracks on the online music service include neither artist. That doesn't mean the Top 10, however, is too obscure. Two of this year's songs of the summer -- Robin Thicke's "Blurred Lines" and Daft Punk's "Get...