Jam Cruise 12 reveals their artist lineup tomorrow – Wednesday, May 1 - exclusively on SiriusXM Jam_ON. Tune in to Jam_ON at 4:00 PM EDT to be the first to hear which artists will be on board when Jam Cruise 12 sets sail January 4 – 9, 2014. Login to your SiriusXM account and listen wherever you are, or sign up for a free SiriusXM 7 day trial.For this 12th installment of Jam Cruise, music’s original floating festival sets off from PortMiami aboard the MSC Divina – a brand new, state-of-the-art, ultramodern ship. While the Divina can hold more passengers than ships in years past, Jam Cruise will limit the capacity and maintain the intimacy that fans know and love.Visit jamcruise.com after 5pm EDT on Wednesday to view the full lineup announcement (plus, a brand new JamCruise website). Jam_On will feature music by Jam Cruise 12 artists til 7pm with the General of Jam, Jonathan Schwartz.