A song that is Pop Perfection is a song that is not innovative and trendsetting, it's slightly generic but not too generic and the lyrics are just mindlessly dumb. Basically it's a song you can bop to 24/7 without getting sick of it.
Pop perfection can be innovative and and trendsetting though. Pop perfection is simply pop perfection, ya know?
But I do have to say Kylie's "Can't Get You Out Of My Head" QUICKLY came to mind. Also, Ke$ha's "Cmon" has ALWAYS been pop perfection from first listen in my opinion. Also, "Umbrella" and "We Found Love" by Rihanna, "Bad Romance" by Gags, "Teenage Dream" by Katy Perry, "The Sign" by Ace Of Base, "Two Of Hearts" by Stacey Q, "Ironic" by Alanis, "Chocolate" by The 1975, half of Madonna's discography, etc.