So all Katy Perry fans have you had enough of Teenage Dream? I sure don't. So far for me her 1st and 2nd single are freaking 'ooo la la la'. From sweetish naughty to lovey dovey, she goes more encouraging in her soon to be her 3rd (that's what I know la...don't blame if wrong k..) single. Will the 3rd one be a hit? I wonderrrrr... Here's Katy Perry performing her soon to be 3rd single from the album Teenage Dream, Firework..