DJs not on the lineup will be playing the lawn, according to the official facebook. I guess that explains the DJ Gabe Real self-confirmation, and IIRC, Franki Chan tweeted a couple months ago that he was going to be on the cruise.
This cruise is the perfect opportunity for some of these live acts to afterparty-style DJ sets in one of the night clubs or the lawn, so maybe that's part of it as well?
DJs gabe real, juice, jimbo jenkins, art, a special guest, and "primavera djs." Har Mar Superstar is also onboard for some reason.
4/9 Operators @ Bootleg, 4/14 Lush @ Roxy, 4/20 Bat for Lashes @ The Cathedral Sanctuary, 4/22-24 Coachella, 5/21 Jennylee @ Getty, 6/1-5 Primavera Sound, 6/7-8 Chelsea Wolfe @ Teragram Ballroom, 8/4 Radiohead @ Shrine Auditorium, 8/27-28 FYF Fest