The Beths' 'Happy Unhappy' Is the Song of the Summer

The Beths' 'Happy Unhappy' Is the Song of the Summer. What makes a summer jam? Is it the sunniest chorus, the hottest beat, the most weeks on the charts? Do the lyrics have to be about beaches and barbecues, or is it a question of vibe? What if it's a song on your summer playlist and no one else's?

We believe the answer is "all of the above." This summer, Rolling Stone's writers will celebrate the songs that are ruling each of their worlds – from huge