Lights?
Radioactive?
F**k You! (Cee Lo Green)?

Enlighten me, sistrens.

Somebody That I Used to Know

radioactive considering it took like a year to get big

and its an excellent song..they won't ever top it

Just Dance

Radioactive for sure, what an excellent anthem One of the biggest songs of all time

Lights is one of the most perfect pop songs this decade, so it's hard to choose one. I love both

You also have:

"All Of Me"
"Give Your Faves A Break"
"Sail"
"If I Die Young"
"Jar Of Hearts"

Lights & 2 On >>>

Living for Love

Lord wake ha up, up, up, up

Pumped Up Kicks by Foster The People is the only correct answer

"JUST A FOOL" by Christina Aguilera & Blake Shelton.
I have heard it played at Macy's, Kohls, Kmart, Sears, and La Bonita Super Market to name a few - many many times

call me maybe

Karma Police

Somebody that I Used to Know
Tik Tok
If I Die Young
Pumped up Kicks

wow another decent post by you. what is happening!

Lights & Habits

2 on.

45S

STIUTK & Radioactive, with Lights of course. There are a few more but I'm exhausted and can't think of any right off the top of my head.

I remember Forget You shooting from 96 to 33 in the second week and thought "Where did these Ceelo stans come from?" And it teetered in the top 30 a good while before shooting to the top ten.

Some of 2012's biggest hits being released over a year prior was interesting too, both Lights and STIUTK.

Lights.

Pumped up Kicks, Tik Tok, Summertime Sadness...