Garin Kilpatrick's Tumblr.

You can download this song here.

These are the top 25 most popular hit songs of 2009 (according to Billboard Magazine).

DJ Earworm did a top 25 of 2008 song as well but it is not as good!

The 25 songs below are all used in this mashup.

• 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 FEELING
• 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 THRU 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