Brian Wilson, co-founder and former frontman for The Beach Boys, has called for a boycott of the band as it readies to perform at a trophy hunting event. The Safari Club International annual convention is being held in Reno, Nevada, and will feature a speech from Donald Trump Jr. in addition to the legendary band's current touring group.

“This organization supports trophy hunting, which Both Al [Jardine] and I are emphatically opposed to,” Wilson said in a tweet on Monday. “There’s nothing we can do personally to stop the show.”

While Wilson remains a part of the Brother Records, a holding company controls the Beach Boys intellectual property. Neither Wilson nor Jardine are a part of the band’s touring group, which is led by another founding member, Mike Love.

Wilson also shared a link to a petition which urged fans to boycott the group’s music and live shows in light of its performance at the Safari Club’s event.

“Dear Beach Boys Manager Elliott Lott,” the petition states. “We the undersigned pledge to stop buying or downloading all Beach Boys music, going to Beach Boys concerts, and purchasing any Beach Boys merchandise until the Beach Boys withdraw from the SCI Convention and publicly state their opposition to this sick ‘sport’ of killing animals for ‘fun.’”

Donald Trump Jr
Donald Trump Jr. and Vanessa Trump attending the Zang Toi runway show in Gallery II during New York Fashion Week: The Shows at Spring Studios on Feb. 13, 2019. Manny Carabel/Getty Images