There are some Katy songs which have a deep meaning and which are really well-made and beautiful (e.g. Thinking of You, Firework, The One that Got away, Unconditionally). And I love this first category with my whole heart. <3 On the other hand, nevertheless, there is this other type of songs, the bad ones. These songs, which might have a deceivingly good melody, have a video clip and lyrics that are completely silly, awful and badly-made (e.g. T.G.I.F., Roar, Dark Horse). This second category makes me feel a bit disgusted by the fact that Katy's talent is wasted and commercialized for the shake of attention, while she could just be more natural and less controversial. In all cases, however she is incomparable to Gaga..! :3
Personally i think Katy Perry is to manufactured by her record label and just sings to get the sales of singles for money and all that shit but the truth is she cant really sing. she can hit a high note but it has no depth and her songs really don't have any meaning. Also compared to Gaga's VMA performance Katy Perry floped.
I love Katy perry but I wish she would break out of being a bubble gum pop star she can sing and she does have talent but they make her sig basic pop songs that we don't get to see her real talent idk that's just my opinion.