FILE - This June 17, 2013 file photo shows Nancy Wilson, left, and Ann Wilson of Heart performing on opening night of the Heartbreaker Tour at the Cruzan Amphitheater in West Palm Beach, Fla. The ... more 
FILE - This June 17, 2013 file photo shows Nancy Wilson, left, and Ann Wilson of Heart performing on opening night of the Heartbreaker Tour at the Cruzan Amphitheater in West Palm Beach, Fla. The group Heart is the latest act to cancel an appearance at SeaWorld Orlando's Bands, Brew & Barbecue music series in February. Country singer Willie Nelson and the rock group Barenaked Ladies also have canceled. A posting on Heart's official Twitter page over the weekend says the decision was influenced by the recently released documentary "Blackfish." The documentary raises questions about the effects of captivity on killer whales at marine parks such as SeaWorld. (Photo by Jeff Daly/Invision/AP, File) less 
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Associated Press
Mon, Dec 9, 2013 12:44 PM EST