Daniel Kim's Pop Danthology has put together a mashup of some of the biggest pop songs from 2013 and created a slick video to showcase all of them! From Robin Thicke to Justin Bieber, Beyonce to Psy, and Lady Gaga to Maroon 5, this clip moves from one song to another seamlessly. Wondering what song to play at your next party to please everyone? This may be it.