help please with music from cheech & chong's up in smoke?

Question

i'm after the instrumental bit which is played just after they've left the border after the nuns have been busted.before they pick up the hitchikers.also do you know who does the song everybody at the rock fight?

Answer 1

Soundtrack listing
1. The Finkelstein **** Kid
2. Up In Smoke
3. Low Rider
4. 1st Gear, 2nd Gear
5. Framed
6. Searchin'
7. The Ajax Lady
8. Strawberry's
9. Here Come The Mounties To The Rescue
10. Sometimes When You Gotta Go, You Can't
11. Lost Due To Incompetence
12. Lard ***
13. Rock Fight
14. I Didn't Know Your Name Was Alex
15. Earache My Eye
16. Up In Smoke (Reprise)

Answer 2

http://www.amazon.com/gp/product/B000002KJ6/ref=ase_internetmoviedat/002-6901772-5348052?s=music&v=glance&n=5174&tagActionCode=internetmoviedat

there is a track listing half-way down the page. i hope this helps. you can even listen to some of the music