Gratitude, I owe it all to you, This one, Maybe I'm amazed-Paul McCartney
a lot of John Denver's songs... (Annie's Song, Sunshine on my shoulder...)
Thank you for loving me - Bon Jovi
Someone saved my life tonight, Your song -Elton John
Here comes the sun, She Loves You, Thank you girl- The Beatles
I will always love you -Withney Houston/Dolly Parton
You are so beautiful - Joe Cocker/Billy Preston
God only knows, You Still Believe in me-Beach Boys
Bobby Jean-Bruce Springsteen
The Best-Tina Turner
Wonderful Life-Black
Thank you for the music, I have a dream, -ABBA
You're Still The One-Shania Twain
We are the champions, Was it all worth it?, These are the days of our lives, A winter's tale (Freddie last song before his death being thankful for having lived)-Queen
Oh my love (in the Imagine's album)-John Lennon <this is a good one and mostly unknown, it deserves a link
YouTube - JOHN LENNON OH MY LOVE new version
Wonderful Tonight-Eric Clapton
(You Make me feel like a) Natural Woman, I Say A little prayer -Aretha Frankin
You are the sunshine of my life, Isn't she lovely?, For once in my life, and lots more-Stevie Wonder
Beautiful Day, All because of you - U2
Because you loved me-Celine Dion
it's not a song but Bono singing "Thank God it's them instead of you" in "Feed the world"
etc.