Ok, maybe because I'm a Katy fan, but I really don't think she sounds bad at all!!!
A lot of people are being total haters and saying she can't sing.... um HI! This isn't a ballad or anything of the sort. It's a fun, upbeat poppy song, and I personally think she sounds great!
What do you think of her isolated vocals from her Grammy performance of "Chained to the Rhythm"???