You don’t forget the images: the olive ridley sea turtle, a plastic straw lodged in his nose. The Rubenesque sea lion, neck cinched tight by a thick plastic packing strap. The Cuvier’s beaked whale, stomach split open to reveal more than 80 pounds of plastic waste—snack bags, rope, rice sacks...

Editor’s note: Portions of this concert will be pre-recorded WASHINGTON—On April 30, international superstar and multiple Grammy Award winner Rob Thomas; singer, songwriter Chris Daughtry; and singer, songwriter Gavin DeGraw will present "Rock the House for Animals" a livestream event featuring...