Perfect Pop Songs

"Only the Lonely" The Motel"
"Stacy's Mom" Fountains of Wayne

Another vote for "God Only Knows"; I'd also add "Day After Day" by Badfinger.

A lot of great suggestions but--how about the most obvious. To me, the quintessential pop tunes as expressions of rebellion, teenage angst and/or lust are:

Satisfaction
I Saw Her Standing There
 Like a Rolling Stone

Unlike many great pop songs, I have never tired of hearing these.

For a great sleeper:

Tighter, Tighter
by Alive and Kicking--Co-written, co-produced  and sung (one of the two vocalists on the record) by Tommy James

(Likely deleted/blocked before seen by some....)

Something About You ~ Level 42

Violet ~ Hole

By Myself ~ Linkin Park

Disappear ~ INXS

Everywhere I Go ~ The Call

Clocks ~ Coldplay

Six Underground ~ Sneaker Pimps (Neliee Hoopers' remix is better, tho...)

(There She Goes is on my playlist as well, just to be transparent 'n all/...)

"Pop song", as in ’popular’...is debatable....

Luka ~ Suzanne Vega is lush with wonderous clarity, but the subject is painful in it's way....

'Popular".....with some of us, and if it's only me....your loss.