Not all of these are happy, but in one way or another they lift my mood. I've listed them with the preferred performer for each song.
Autumn in New York - Billie Holiday
Black Rat Swing - Precious Bryant
Brave - Sara Bareilles
Dance Me to the End of Love - Madeleine Peyroux
Don't You (Forget About Me) - Simple Minds
Feeling Good - Nina Simone
Goodnight, New York - Vienna Teng
Impossible Dream - Andy Williams
Jumpin' Jack - Big Bad Voodoo Daddy
Kind and Generous - Natalie Merchant
A Little Less Conversation - Elvis Presley
My Funny Valentine - Ella Fitzgerald
Nobody But Me - The Human Beinz
Non, je ne regrette rien - Edith Piaf
On the Sunny Side of the Street - Ella Fitzgerald
The Only Living Boy in New York - Simon & Garfunkel
Tightrope - Janelle MonĂ¡e
Upside Down - Paloma Faith
Image credit and license: Wikimedia Commons