The Great South Bay Music Festival will bring back rockers 311 to headline Night 2 of this year’s extravaganza at Shorefront Park in Patchogue.

The “Down” rockers, who announced plans for a new album Wednesday, lead an eclectic slate of bands for July 14 that also include reggae legends The Wailers, New Politics — the Danish rock band that includes Farmingdale’s Louis Vecchio on drums — and newcomers The Skints.

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Great South Bay Music Festival organizers hope that 311 connects with concertgoers the way the band did in 2015 when it previously headlined the fest, Long Island’s biggest and longest-running summer music festival. Organizers say Great South Bay will once again be a four-day festival this year.

Tickets are $39 and go on sale at 8 a.m. March 2 through greatsouthbaymusicfestival.com. Tickets for the festival’s first night, featuring Long Beach’s Taking Back Sunday and New Found Glory, also go on sale on March 2.

While 311 is gearing up for a new summer tour that starts in June, the band will set sail next week for “311 Caribbean Cruise V,” a four-day cruise from Tampa, Florida, to Cozumel, Mexico, featuring 311, Rebelution, Reel Big Fish and others.