Rockers Heart have become the latest act to pull out of a show at SeaWorld in Florida following pressure from animal rights campaigners.
Veteran country star Willie Nelson and Barenaked Ladies recently canceled 2014 shows at Orlando's attraction following the documentary "Blackfish," which focuses on the treatment of captive killer whales and sparked a furor over alleged animal cruelty issues.
A number of petitions were set up urging artists to cancel planned shows at SeaWorld, and rock group Heart has now left the line-up. Guitarist Nancy Wilson confirmed the news in a series of posts on her Twitter page, writing, "The SeaWorld show was planned long ago as an Orlando show. Had we known, we'd have said no then. We said no today ... I am a big Orca fan. I hosted a nature documentary once called 'Baby Wild' all about Orcas. I'm happy to stand w/all (with all) of u to protect our animals."
Wilson subsequently received a message of thanks from activists at animals rights organization PETA (People for the Ethical Treatment of Animals). The message, sent via Twitter, reads, "Thank you for taking a stand against animal abuse! The orcas thank you."