Teenage Dream is an amazing album. It's basic pop music but it does it so amazingly, and I'd rather it just be basic pop than trying (and failing) to be art or whatever like Gaga has been trying to do since 2011. Anyone that disagrees is probably uneducated/lying to try and fit in on ATRL
I don't really remember Teenage Dream as a single at all. I guess it is because I didn't care about pop music at all during that time but I very much remember California Gurls, Firework, E.T., and Last Friday Night. But it's the one I hear the most on the radio (other than Firework) so I guess that's irrelevant.