1: Who sang "Havana"?
2: Who sang "Call me Maybe"?
3: Who sang "Best Day of my Life"?
4: Who sang "Roar"?
5: Who sang "Hello"?
6: Who sang "Sit Still, Look Pretty"?
7: Who sang "Thunder"?
8: Who sang "Give your Heart a Break"?
9: Who sang "Me Too"?