Each December, mash-up artist DJ Earworm creates a mash-up of the songs that he thinks defined the pop music year in the United States. For this year's song, entitled "Do What You Wanna Do," the loudest songs, aptly, are Iggy Azalea's "Fancy," Pharrel Williams's "Happy," and Taylor Swift's "Shake it Off."
But there are also bursts of a handful of up-and-coming artists. Listen carefully, and you'll catch tunes from Meghan Trainor, Charli XCX, and Tove Lo.
DJ Earworm included a full list of the 25 songs used in the video on his Youtube page.
