Tik Tok - Catchy. Makes me want to dance. Untiring to listen.
Fireflies - I so hated it at first, but then my classmates are whoring it so much that it happened to grow on me.
Hard - Never liked it. Fire Bomb and Stupid In Love are the only songs I liked from her last album.
BRICK BY BORING BRICK
The best song on Brand New Eyes! I love the production, but the best part of the song is Hayley's vocals! I bet no one can sing this as good as Hayley.