1. One Time -Justin Bieber

I'm pretty sure I spent all of 2009 convincing myself I was going to marry Justin Bieber. And then all of 2010. And 2011.

2. Boom Boom Pow -Black Eyed Peas

I have no clue how this song was as popular as it was, but I remember the summer of 2009 and having this song playing constantly.

3. Empire State Of Mind -Jay Z and Alicia Keys

Bonus points for anyone in the New York/New Jersey area who remembers when Z100 made a Yankees parody of this song and played it constantly when they were in the World Series.

4. Party in the USA -Miley Cyrus

This song still goes hard. 2009 also brought us "The Climb" so its safe to say 2009 was Miley's year.

5. Fireflies -Owl City

6. Right Round -Flo Rida

I have very vivid middle school dance memories right now

7. Fire Burning -Sean Kingston

I don't really know where Sean Kingston is now, but I am thankful he gave us this song

8. Best I Ever Had -Drake

I'm pretty sure that this was the first Drake song I had ever heard, besides that one time he rapped on Degrassi and it has only gotten better since then. ILY Drake!

9. 21 Guns -Green Day

10. Good Girls Go Bad -Cobra Starship ft. Leighton Meester

First of all, this music video is probably why I have an obsession with speakeasies. Second of all, I had such a huge Cobra Starship phase and this is what started it. All in all, this song is iconic. Happy 10th birthday!!

11. Down -Jay Sean ft. Lil Wayne

12. Bad Romance -Lady Gaga

I was afraid of Lady Gaga back in the day, but luckily I grew up and now recognize her talent!

13. Run This Town -Jay Z ft. Rihanna

14. Day 'N' Night -Kid Cudi

15. Love Drunk -Boys Like Girls

This song still rocks. Also Ashley Tisdale is in the music video, which is very early 2000s.