A question:
When Katy sings 'you're never gonna be unsatisfied', is that grammatically correct? Should it not be 'dissatisfied'? Just wondering.
And I agree with ethan, Birthday is definitely an important single.
Acording to this, dissatisfied applies when its about a feeling of unhappiness. Unsatisfied is a feeling of needing more. So I think it's grammatically correct
That payola business was a crock. Everything is transparent now. Payola still exists, but it operates differently and is transparent (an artist will agree to do a concert for a radio station, or give an iHeartRadio appearance, do an interview for a station, or negotiate a one-day Clear Channel deal for a first single). If a big pop artist isn't maintaining a relationship with radio, their career will probably be short lived.