Well, you forgot the question mark but I'll close my eyes!
Clue #1: sweet sixteen < CIPWM is the 16th single released by the band
Clue #2: pining for the doctor < the actor Graham Chapman, best known for being part of the Monty Python (he co-wrote the Parrot Sketch, hence "pining for [the fjords]"), graduated as a doctor before becoming a full-time writer and comedian. He made his last appearance, as the art teacher, in the video for the song.
Clue #3: Viserys Targaryen < refers to the cover and to the fact this GOT character dies from getting molten gold poured on his head. It also less directly echoes the line "Your soul's gonna burn in a lake of fire".
Clue #4: this song inspired the title of a bootleg named after it but bearing a mistake
Clue #5:
The lines "
Oh and then he fixed me with a freezing glance
And the hell fires raged in his eyes
He said, "do you wanna know the truth, son?"
"Lord, I'll tell you the truth"
are reminiscent of Colonel Jessep's snapping in his defense in
A Few Good Men (the picture is a still from the film)