Eight years into its existence, Northside Festival is determinedly future-minded. Dividing itself into thirds, the NYC festival has two- and three-day stretches dedicated to "innovation" and "content". The other third -- four days worth of music between the East River and Bushwick, pulls in choice marquee names and established artists...

Treefort is chill as f$%&. It's an easygoing, grunge-pop party that bubbles over with positive energy. It's the kind of festival where you can disappear into a dark, loud room to dance your heart out, then emerge to see giant puppets grooving in the sunshine. It's one big daydream where...