Dave Matthews Band, Bo Diddley, John Mayer, The Roots, Lee “Scratch” Perry, Ben Harper, Ben Kweller, and Sierra Leone’s Refugee All Stars are among the artists confirmed for both fests, the first of which will take place on the West Coast at Fremantle’s Esplanade March 31 and April 1. The West Coast edition is expanding to two days for the first time in its four-year history.

Bonnie Raitt, Fishbone, Animal Liberation Orchestra, Flogging Molly, Gogol Bordello and Tony Joe White are on board for the 18th annual East Coast version, which will span five days April 5-9 at Byron Bay’s Red Devil Park.

The lineups also feature a number of Aussie faves including Wolfmother, Kasey Chambers, Xavier Rudd, and John Butler Trio.

Tickets are available for the East Coast as three-day, five-day and daily VIP passes.

Pre-sale tickets will be available for the West Coast in both single-day and weekend formats beginning December 4.