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Hear Taylor Swift, Ariana Grande and the rest of 2014 in just over 4 minutes
Taylor Swift, Ariana Grande, Pharrell Williams, Iggy Azalea, Magic!, Nicki Minaj and Lil John have a new song together.
They're among the dozens of pop stars featured on the 2014 edition of DJ Earworm's annual "United State of Pop" mash-up megamix. It's noticeably slower and less overtly dancey that Earworm's previous year-end mixes, and it's also where Maroon 5 finally does battle with Meghan Trainor.