With 2009 coming to a close, we've dished out our BE[a]ST of the year lists, given you a number of holiday goodies from labels and artists, and prepped as best we can for 2010. But no musical chart-topping year is ever complete without the mighty hand of DJ Earworm.

For the past 2 years, the San Francisco-based DJ has been compiling his annual wrap-up mashups, taking the top chart-busting heat-seekers and mixing them in one tight and tidy package. And so goes the case for 2009, with his United State Of Pop 2009 (Blame It On The Pop). The mashup features the top 25 most popular hit songs of 2009, according to Billboard Magazine.

After the video, you'll find the track list.

The Black Eyed Peas - Boom Boom Pow
Lady Gaga - Poker Face
Lady Gaga Featuring Colby O’Donis - Just Dance
The Black Eyed Peas - I Gotta Feelig
Taylor Swift - Love Story
Flo Rida - Right Round
Jason Mraz - I’m Yours
Beyonce - Single Ladies (Put A Ring On It)
Kanye West - Heartless
The All-American Rejects - Gives You Hell
Taylor Swift - You Belong With Me
T.I. Featuring Justin Timberlake - Dead And Gone
The Fray - You Found Me
Kings Of Leon - Use Somebody
Keri Hilson Featuring Kanye West & Ne-Yo - Knock You Down
Jamie Foxx Featuring T-Pain - Blame It
Pitbull - I Know You Want Me (Calle Ocho)
T.I. Featuring Rihanna - Live Your Life
Soulja Boy Tell ‘em Featuring Sammie - Kiss Me Through The Phone
Jay Sean Featuring Lil Wayne - Down
Miley Cyrus - The Climb
Drake - Best I Ever Had
Kelly Clarkson - My Life Would Suck Without You
Beyonce - Halo
Katy Perry - Hot N Cold

mp3: DJ Earworm - United State Of Pop 2009 (Blame It On The Pop)