I am a huge fan of mashups. I love when someone talented takes two seemingly unrelated songs and mashes them together to form something new and even more awesome than the two songs by themselves. (I might have voiced this particular obsession before.)
For the past few years, December has not only meant birthdays and holidays and winter(ish) weather, it's also meant an awesome end-of-the-year mashup: the annual United State of Pop by DJ Earworm. The 2013 mix was released last week, and it's terrific. The video is pretty dang fantastic, too.
Previous years' editions can be heard via DJ Earworm's Soundcloud.
I also ran across another year-end music wrap up by Daniel Kim. The video's not as well done as DJ Earworm's, but the song's got enough different songs in it that it's doesn't compete; it compliments.
I'm also sorry (for serious this time) about the Bieber and the Miley Cyrus.
P.S.—Have you signed up for my Christmas card exchange?