Arctic Monkeys guitarist Jamie Cook has said that Amy Winehouse should "take a break" from music.
Cook's band avoided watching Winehouse's performance at Glastonbury on Saturday, choosing to drink beers backstage instead, according to The Mirror.
Commenting on the singer's current health, Cook said: "Amy is a fantastic talent but she shouldn't be on stage when she's in such a state.
"Only a week ago she was seriously ill and now she's performing at gigs. She needs to take a break from performing and sort herself out."
Winehouse apparently checked back into hospital following her performance at the festival.
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