Arctic Monkeys guitarist Jamie Cook has advised Amy Winehouse to take a career break in order to overcome her personal problems.

The guitarist said the singer had a “fantastic talent” but “shouldn't be on stage when she's in such a state.”

Cook's comments came at the Glastonbury festival where Winehouse performed on Saturday in front of a crowd of over 75,000 people (June 28th).

Despite delivering her first full set in over half a year, Cook expressed his concern over the performance.

"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,” he told the Mirror newspaper.

(by Jason Gregory)