By Morwenna Kearns
Celebrity endorsements can fall a bit flat, but some famous faces are using their headline-grabbing powers for good. Here are some of our favourite ethical celeb campaigners.
Leonardo DiCaprio is the go-to A-lister for environmental issues. As well as making his Oscar acceptance speech for The Revenant a message about climate change, he has also teamed up with director Fisher Stevens for the feature-length documentary Before the Flood and pulls no punches in asking serious questions about our planet.
Blondie's new album is called Pollinator and is cool enough by itself (Long Time is a banger, really) but profits from the official merch also help support actual pollinators, after the New York band was recruited by Friends of the Earth for its Save the Bees campaign. Debbie Harry has also been rocking a 'Stop Fucking the Planet' slogan smock lately, which is pretty punk.
Thrift Shop star Macklemore is on a mission to save the environment from 'the devil of the forest': PFC fabrics that don't biodegrade and outdoorsy people keep leaving in the woods. He's the face of Columbia's OutDry Extreme ECO jacket, which is made from 21 recycled plastic bottles and is plain white to save the 13 gallons of water that would normally go into the dyeing process.
Emma Watson is basically our hero so it's no surprise that she's one of the Hollywood stars to embrace the Green Carpet Challenge, an Eco-Age initiative founded by Livia Firth. At last year's Met Gala, Watson's outfit was made from fabric manufactured from used plastic bottles, while fellow actors Lupita Nyong'o and Margot Robbie also wore ethically made gowns. Lily Cole, Gisele Bündchen and more have served up green glamour on the red carpet too.
DYK Prince wrote a pro-vegan song called Animal Kingdom in the 90s and gifted it to Peta? The lyrics aren't subtle but it's heartfelt, and even uses dolphin calls. It's free to stream, and a lovely reminder of what Prince stood for as a musician and an activist.