Heart Pulls Out of SeaWorld Show Amid Petition, 'Blackfish' Doc

The announcement follows Willie Nelson's confirmation Friday that he had canceled his show. This article first appeared on Billboard.com Following in the footsteps of predecessors Barenaked Ladies and Willie Nelson, Heart has canceled an upcoming performance at SeaWorld Orlando in light of a petition created following the release of documentary film Blackfish. According to a tweet posted to guitarist Nancy Wilson's Twitter account, the show had originally been planned as an Orlando show; had th...