You know it's the end of the year when DJ Earworm throws us his "United State of Pop" Mashup, it's the most popular end of the year mix.

We wait for it every year now. We love his mix style and the way he puts together all the biggest hits of the year. Who made the cut on the biggest mashup of the year? Check out the mix list below.

A Great Big World feat. Christina Aguilera - Say Something
Ariana Grande feat. Iggy Azalea - Problem
Bastille - Pompeii
Dj Snake & Lil Jon - Turn Down For What
Hozier - Take Me to Church
Idina Menzel - Let It Go
Iggy Azalea feat. Charli XCX - Fancy
Iggy Azalea feat. Rita Ora - Black Widow
Jason Derulo feat. 2 Chainz - Talk Dirty
Jeremih feat. YG - Don't Tell 'Em
Jessie J feat. Ariana Grande & Nicki Minaj - Bang Bang
John Legend - All Of Me
Katy Perry feat. Juicy J - Dark Horse
Lorde - Team
Magic! - Rude
Maroon 5 - Animals
Meghan Trainor - All About That Bass
Nico & Vinz - Am I Wrong
One Direction - Story of My Life
Passenger - Let Her Go
Pharrell Williams - Happy
Pitbull feat. Ke$ha - Timber
Sam Smith - stay with me
Taylor Swift - Shake It Off
Tove Lo - Habits

Now that's a mashup.  Happy New Year!

[YouTube]