music legend willie nelson is known for making music to make a statement, but now he's sending a message by not singing. he's canceling a february performance set for sea world orlando and this decision comes after this petition showed up on change.org. we have been checking on this today, more than 9,000 so far have signed it asking willie nelson not to sing at sea world in the wake of the revelations from blackfish, the cnn film documentary that traces 39 years of killer whales in captivity leading up to a sea world orca killing its trainer in 2010. just last hour, i talked to willie nelson about why he stopped his show. >> i had a lot of calls from people asking me to cancel, and i understand there are petitions going around with thousands of people's names on it. so you know, i had to cancel.