Who said "Don't underestimate the power of a good playlist."?

This quote is attributed to Guardians of the Galaxy.

Don't underestimate the power of a good playlist. - Guardians of the Galaxy

"Don't underestimate the power of a good playlist."

Guardians of the Galaxy Music

"I'm your friend, man. I do this because you're my friend."

"Sometimes the thing you fight the most is the thing you need the most."

"We are Groot."

"You're welcome for saving the galaxy, by the way."

"Music is the language of the soul."

"My music comes from my heart."

"Music transcends all language barriers."

"Music is the universal language of love."