I'd give you such a lashing if this wasn't just your second post...

Call Me Maybe

Blurred Lines
Get Lucky
Radioactive by Imagine Dragons
all Bruno Mars songs
Say It Right by Nelly Furtado
Irreplaceable by Beyoncé
Let Her Go by Passenger
Royals by Lorde
Cups by Anna Kendrick
We Are Young by fun.
Somebody That I Used To Know
Lovebug & Year 3000 by Jonas Brothers
Love Me Again - John Newman
Give Me All Your Luvin' - Madonna
any song by Michael Jackson except for Bad and Thriller
Wild - Jessie J
Hurricane - Bridgit Mendler
Pumped Up Kicks
21 Guns
all songs from Maroon 5's Overexposed era
Home - Phillip Phillips
Ho Hey
Little Talks
Feeling Good
all Lee DeWyze songs

Teeth
Americano
Piece of Me
Countdown
More Than This
Walks Like Rihanna
Blurred Lines
Wake Me Up
The "I Been On" segment of BowDown/I Been On. I just love the Bow Down Bitches part.