Solved:
1. Christina wants a habit that'll keep her occupied
--The Curtain Society, "Therapy" lizzielizzie

2. The holy girl is in our focus
--Information Society, "The Ridge 1.1" z_gryphon

3. Some will strut and some will fret
--Indigo Girls, "Virginia Woolf" kadnkadnk

4. Yesterday, I was thinking it's a good time to change
--Tribe, "Abort" (I thought lizzie might get this.)

5. What would you be if the waves set you free?
--Big Country, "Sailor" solipsistnation

6. I try to discover a little something to make me sweeter
--Erasure, A Little Respect solipsistnation

7. Spring is here, spring is here, life is skittles and life is beer
--Tom Lehrer, "Poisoning Pigeons in the Park" mazianni

8. Nothing in this world can touch the music that I heard when I woke up this morning
--New Order, "Dream Attack" solipsistnation

9. When I was young, my mind would always wander away
--Oingo Boingo, "Cinderella Undercover" solipsistnation

10. What got into you got into me too
--Wang Chung, "Praying to a New God" z_gryphon

11. It's just coincidence
--The Chameleons UK, "Tears" solipsistnation

12. What a dream I had, pressed in organdy
--Simon & Garfunkel, "For Emily, Wherever I May Find Her" solipsistnation

13. How can you see into my eyes like open doors?
--Evanescence, "Bring Me To Life" mazianni

14. Is it too late? Nothing to salvage
--t.A.T.u., "Friend or Foe" (See, Doug? More potentially shameful than John Parr. ;)

15. There were 87 Advil in the bottle, now there's 30 left
--They Might Be Giants, "Till My Head Falls Off" mazianni

16. You gentlemen who think you have a mission to purge us of the seven deadly sins
--Pet Shop Boys (or Bertholt Brecht's Threepenny Opera), "What Keeps Mankind Alive?" solipsistnation

17. Growing up, you don't see the writing on the wall
--John Parr, "Man in Motion (St. Elmo's Fire)" trystero

18. Left home with a friend of mine
--Devo, "Going Under" solipsistnation

19. Maybe I've seen your face a long long time ago
--The Smithereens, "Beauty & Sadness"

20. Sleeping on a time bomb, staring into space
--Bad Religion, "Parallel" z_gryphon