Woodstock + Clinton Hill = Hillstock!

The hills — well, at least Clinton Hill and vicinity — will be alive with music this month.

From June 11-13, acoustic concert series Hillstock returns to the backyards and rooftops of Brooklyn for three days of laid-back vibes, good music and sun.

“Last year’s Hillstock went amazingly well,” said Eric Williams, one of the organizers who’s bringing together 40 bands — mostly Brooklyn-based acts — for the mostly outdoor fest in Clinton Hill and beyond. “Everyone had a great time, the bands were incredible, and we didn’t get a complaint from anyone.”

Things kick off on Friday at Shea Stadium in Bushwick, with “great bands that tend to make audiences dance like crazy people,” promised Williams, whose own band, Eskalators, is included, with the silly yet sincere Terror Pigeon Dance Revolt! closing the night.

The next day, things move outdoors, to a rooftop in Clinton Hill. The nearly 12 hours of music culminate with the percussive blast of Aa.

On Sunday, a Prospect Heights roof hosts the festivities, for some stunning views and nine hours of music from 18 diverse acts.

The hardest part will be getting people to stay for the whole thing.

“We have some great bands playing earlier than most people like to go to shows, so we’ll try to entice people out with treats and surprises,” said Williams.

Hillstock at Shea Stadium (20 Meadow St. between Waterbury and Bogart streets in Bushwick, no phone), June 11 at 6 pm; The Backyard (106 Emerson Pl. between Myrtle and Park avenues in Clinton Hill, no phone), June 12 at 11 am; and The Roof (967 Bergen St. near Franklin Avenue in Prospect Heights, no phone), June 13 at 12:30 pm. Tickets $7 a day, $15 for a three-day pass. For info, visit www.neverbreakdown.com/hillstock.