the answers!!

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1.unfaithful-Rihanna
2.beautiful-Christina a.
3.sweet talk 101-CIWWAF
4.nobody's home-Avril
5.l.o.v.e.-Ashlee S.
6.mandy-Jonas brothers
7.curse of curves-CIWWAF
8.honestly-Cartel
9.graduation day-Head Automatica
10.so sick-Ne-yo
11.lets get fucked up and die-Motion City Soundtrack
12.Oh i think they like me-A whole bunch of black rappers
13.since you've been gone-Kelly clarkson
14.gold digger-Kanye and Jamie Foxx
15.over my head[cable car]-The Fray