Singing Chewing Gum: Science Behind the Habit of Stars

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Why do singers chew gum during shows? At Rock in Rio, the Foo Fighters show brought a curious but familiar scene for those who accompany the band closely: Dave Grohl chewing gum while singing. He is not alone in it. Marcus Mumford, from Mumford & Sons, also has this custom and gave a mask at the festival. Long before, Liam Gallagher at Oasis, Rob Halford at Judas Priest, John Lennon at Beatles and even tenor Luciano Pavarotti were seen with chew…