Posted June 22, 200817 yr Winehouse may pull out of top gigs Amy Winehouse might have to miss Glastonbury and the Nelson Mandela concert next week, the singer's spokesman has admitted. The troubled singer is booked to play at Mandela's 90th birthday concert in Hyde Park on Friday June 27 followed by Glastonbury, directly before headliner Jay-Z, the following day. But Winehouse, who has fought heroin and crack addiction, is still in a London clinic awaiting the results of tests following her collapse at home. http://ukpress.google.com/article/ALeqM5ip...JYGQoFsmF6RmgXg