From www.wdwinfo.com

Willie Nelson backs out of SeaWorld Orlando's Bands, Brew & BBQ event
Dec 7, 2013

Another singer has pulled out of SeaWorld Orlando's Bands, Brew & BBQ event in February. Country singer Willie Nelson has backed out of his February 1 commitment due to "scheduling conflicts."

Last week, Barenaked Ladies announced that they would not be performing at the event due to an animal rights issue. Their fans had signed a petition asking the band not to perform as a show of support against the documentary Blackfish.