Who said "I think gratitude is the key to a fulfilling life."?

This quote is attributed to Gwen Stefani.

I think gratitude is the key to a fulfilling life. - Gwen Stefani

"I think gratitude is the key to a fulfilling life."

Gwen Stefani Gratitude

Pop Rock Singer American Born 1969 (age 57)

"You're bananas if you think I'm gonna waste my time with negativity."

"I'm just a girl, standing in front of a boy, asking him to love her."

"Don't speak, I know just what you're saying."

"Life is what you make it, so make it fabulous."

"Gratitude makes life richer."

"A grateful heart is a happy heart."

"Respect those who came before us."

"Life's greatest treasures are the people we love"