Don't worry though, Electric Picnic isn't affected. Yet.

London Grammar have withdrawn from Sziget Festival in Hungary and Lowlands in the Netherlands, with management citing singer Hannah Reid's "vocal fatigue" as the reason.

A statement from the band directed at Sziget read: "In order to maintain Hannah's voice and all of our well being, we have made the decision to withdraw from some of our upcoming festival performances.

"We are truly sorry for any inconvenience this causes and regret any disappointment of both our fans and festival organisers. Nevertheless we feel that our decision to reduce our workload is of great importance at this time. We hope you can understand and forgive us for the cancellation."

Reid's deteriorating voice was also to blame for the band withdrawing from T In The Park earlier this year.

Electric Picnic, as well as Wilderness, Popaganda, Bestival, Festival Number 6 and Unknown Festival are still on the band's upcoming festival agenda.

(via Digital Spy)