Only The Good Die Young
Because :
1) The end of the lyrics is a repetition of the first verse of "Moonchild". So, Maiden has recycled these verses.
2) The Tull Theater clue refers to the Jethro Tull's song "Too Old To Rock'n'Roll, Too Young To Die" and "Only The Good Die Young" is also a song from Billy Joel and the term "theater" refers to the Queen's song "No-One But You" with the verse "
only the good die young" in We Will Rock You musical, that was played in theaters.
3) The London Bridge's towers represents the verse "
Some innocent pawn in an end game, one more stalemate", as towers are also pieces in the chess game, like the pawns.
4) The finnish debut album could be Nightwish's 'Angels Fall First'. It's a metaphor of the fact to die too young.
5) It's on the same album as "Infinite Dreams". And related to the verse "
All the evil seem to live forever." That's why this song is about "infinite bad dreams".
6) This guy was so bad in X Country Talents show that he has lost immediately. He "died" too soon, so to "young".
7) And the 5 first clues are references to the lyrics. The repeating lyrics, the verse "Only The Good Die Young", "the pawn in an end game", the metaphor of the angels that fall first and the fact to die too young and the infinite bad dreams because of the evil that seems to live forever...