First Song Lines meme

I put my iPod on shuffle and give the first lines of the songs that come up. Your mission, should you choose to accept it, is to guess the song name and artist. If you google you are a great big cheater.

1. Here's something new, I think I'll give it a try. Come closer you, I like to see what I buy. Guessed by morbid_sparks 
2. When you move in right up close to me, that's when I get the shakes all over me.
3. If you're a hobbit and you know it clap your hands.
4. Red and orange, or red and yellow? In which of these do you believe?
5. I can turn a grey sky blue; I can make it rain whenever I want it to.
6. Underneath these stairs I hear the sneers and feel the glares of my cousin, my uncle, and my aunt.
7. Steve walks warily down the street with the brim pulled way down low.
8. This ain't a song for the broken-hearted. Guessed by morbid_sparks 
9. When I was a kid I played on the street; I always loved illusion.
10. When the Devil is too busy and death's a bit too much, they call on me, by name you see, for my special touch.
11. Any dolt with half a brain can see that humankind has gone insane. Guessed by tarpy 
12. When it began, I can't begin to know when, but then I know it's growin' strong.
13. Look, I find some of what you teach suspect, because I'm used to relying on intellect. Guessed by morbid_sparks 
14. It was Christmas Eve, babe, in the drunk tank.
15. Now you all know the bards and their songs.
16. Lay down your sweet and weary head. Night is falling, you have come to journey's end. Guessed by nazgul_number_7 
17. Long ago in days of yore, it all began with a god named Thor.
18. I live in Barad-Dur where I breed Orcs for the comin' war.
19. There's antimony, arsenic, aluminum, selenium, and hydrogen, and oxygen, and nitrogen, and rhenium. Guessed by tarpy 
20. This is the great big opening song, the kind that Lloyd Webber writes and arranges.