Let's put our heads together and come up with a list of the best all-purpose friendship songs, not so much lover/romance, but just good old friendship. Here's a start:

James Taylor: That's Why I'm Here
Carole King: You've Got a Friend
Bill Withers: Lean on Me
Simon & Garfunkel: Bridge Over Troubled Water
REM: Everybody Hurts
The Pretenders: I'll Stand by You

What are some of your favorites?