Sure, music reduces stress hormones – but did you know it may also ease pain?

In a Swedish study, music played during and after surgery reduced patients’ need for pain meds. Kerry Black, co-producer of Bonnaroo and Outside Lands festivals, gives the top tunes for hard days.

Passion Pit
This is the Massachusetts band’s acclaimed debut from ’09. Or as Black calls it, “the musical embodiment of happiness.”

Stevie Wonder
It’s funky, soothing, and chock-full of celebration. “ ‘Don’t You Worry ’Bout a Thing’ are words to live by,” Black says.

Vulgar Display of Power
It casts out the angst, and a British study found that up-tempo music encourages more-powerful stress-busting workouts.