More than 4,000 people are expected to attend an event and concert in Surrey organised by Queen guitarist Brian May to celebrate nature and wildlife.
May is performing at Wildlife Rocks in Guildford Cathedral, where actress and fellow animal welfare campaigner Virginia McKenna is also appearing.
The musician, who lives in Surrey, has opposed both the government’s badger cull and fox hunting.
“I do spend a lot of my time now trying to give a voice to animals,” he said.
He added: “It comes from a deep-seated belief that we’ve got it all wrong.
“We really imagine that the human race are the only ones worthy of consideration on this planet and I don’t see any justification for that view.
“In my view all animals have an equal right to enjoy life.”
Monday’s event follows the first Wildlife Rocks in 2012, also in Guildford Cathedral, run by May’s Save Me organisation.
May is also a long-term supporter of the Harper Asprey Wildlife Rescue Centre in Camberley.