Great South Bay Music Festival has unveiled the full artist lineup for its 2026 event. Set at Patchogue, N.Y.’s Shorefront Park from July 23-26, the star-studded essential of the Northeast festival scene will return for its 18th annual staging with a cast of 28 leading acts in jam, indie, roots-rock, Americana, ska and more. This year’s bill will be led by headliners Gov’t Mule, My Morning Jacket, Sublime and the Used.

On Thursday, July 23, Great South Bay will begin with early sets from Deadlands, Imposters and Koyo, with pop-punk outfit Cartel and New York’s emo firebrands Bayside before the Used’s finale. On Friday, the program will skew tour reggae and roots-rock, featuring a host of local and traveling acts carrying the torch like Mystic Bowie’s Talking Dreads, Iriespect, Roots Foundation, Bunktown Falls, NY Ska Jazz, Project Vibe, and Long Island’s own Oogee Wawa. Blues-rock duo The Ries Brothers and reggae-pop hitmakers Common Kings will build to a finale from Sublime.

Jam will take the lead on Saturday before the headline set from Warren Haynes’ venerable Southern rock unit Gov’t Mule, with storied acts like Bruce Hornsby & the Noisemakers, mandolin master Sierra Hull and stacked trio LaMP, plus opening performances from Kerry Kearney’s Cajun Revue, the Almost Brothers Band and more. Come Sunday, the festival will come to a close with a grand finale from My Morning Jacket, preceded by Little Feat and Kelli Baker & Noe Socha.

Tickets for Great South Bay are available now. Learn more at greatsouthbaymusicfestival.com.

View this post on Instagram

A post shared by Great South Bay Music Festival (@greatsouthbaymusicfestival)