Songs of All Hopefulness, Songs of All Joy

I'm trying to compile a playlist of songs of encouragement, hopefulness, never-say-die. On it so far:

Mary Ellen Carter - Stan Rogers
True Colors - Cyndi Lauper
Don't Give Up - Peter Gabriel
Marvelous Light - Charlie Hall
Sing a Powerful Song - Saw Doctors
Old Devil Time - Claudia Schmidt
Sun's Gonna Rise - Shannon Curfman [from Soundtrack to Sisterhood of the Traveling Pants]
Sweet Survivor - Peter Paul & Mary

What should I add to it?

Edited to add Songs I already have on my iPod that occurred to me, or people have suggested, and I'll add them:

How Can I Keep from Singing/The Great Storm is Over - Peter Paul and Mary
Ready for the Storm - Dougie MacLean
Go Go Go Joseph - Joseph and the Amazing Technicolor Dreamcoat
The Reel - Secret Garden (no words, but it sounds cheerful, determined and bouncy)
Hope Has a Place - Enya
Hymn to Hope - Secret Garden
Hopeful - Michael Manring (from A Winter's Solstice)
The Rising - Bruce Springsteen

When the complete Return of the King soundtrack is released next November, I'll also add The Battle of Pelennor Fields. Nothing like having King Theoden riding to your rescue.

Edited to add again: I can't believe nobody has yet mentioned Bridge over Troubled Waters. I don't think I have a copy; I'll have to get one.

Edited to add again: ( The list so far )