British rockers Muse fear about the effects their elaborate stage shows could have on their health - they're convinced their powerful lasers will one day blind them.
The Supermassive Black Hole hitmakers are renowned for their elaborate live productions, which often feature bright beams and light shows.
But the musicians have concerns about their vision after a concert stunt made them realise how damaging the lasers can be.
Drummer Dominic Howard says, "We got some big white balloons, threw them into the audience and decided to focus the lasers on them. It was like a slow burn that gradually disintegrated them into nothing. We all thought, 'What the hell will our corneas be like in 20 years?'
"We could end up like that amazing vocal group the Blind Boys of Alabama - getting around doing it really well but not seeing anything."