Oh, boy, Dee. This is like putting a nickel in me.
Just a few, in no particular order
George, "All Things Must Pass" -- I think this is a very hopeful song. It's been called the "best song never recorded by the Beatles."
https://www.youtube.com/watch?v=0EVeeR41aGw
The great Kermit Ruffins and his Barbeque Swingers, with Kermit's take on the old classic, "Oooh, Child," including lyrics "we're all in this together." Kinda keen on him since seeing him in NOLA in January and his appearances on "Treme" ... just fun!
https://www.youtube.com/watch?v=T6xd-jg4VLA
The granddaddy of all happy songs:
https://www.youtube.com/watch?v=0IagRZBvLtw
The inimitable Miss Irma Thomas, with B.B. (RIP)
https://www.youtube.com/watch?v=YM5AXJhfWZc
Feel like swingin' your hips? Here's Trombone Shorty
https://www.youtube.com/watch?v=gSkKSviyPKk