#24

Teenage Dream - Katy Perry, Peak - 3

When I posted about California Gurls earlier in my rundown, I thought about how much of a love/hate relationship I have with Katy Perry.  When I first heard this song, I thought it was boring since a lot of the chorus is one note repeated.  It grew on me a little bit, and then after hearing the a cappella Glee version, I appreciated the original even more.  This was definitely a winner and another big hit for her.