A benefit concert in New York due to be headlined by Black Eyed Peas was cancelled due to thunderstorms.
Around 6,000 people were expected the event in Central Park, but were told after an initial hour delay that the concert would not go ahead.
Natasha Bedingfield, Blondie's Debbie Harry and LL Cool J were also scheduled to perform at The Robin Hood Foundation's Concert 4 NYC.
Black Eyed Peas did perform eventually, but only for around 80 people backstage.
Will.i.am said on Twitter: "I'm so sad the show got postponed.”
At present, it is not clear whether the concert will be rescheduled.