Photo of cardboard cutout abandoned at Solidays, the three-day series of concerts scheduled each first weekend in July in the Bois de Boulogne, Paris.
Rock En Seine organisers are threatening a lawsuit, after singer Amy Winehouse abruptly cancelled her performance, two hours before she was scheduled to appear as Friday's headliner.
Winehouse's musicians arrived in Paris Thursday and rehearsed at the venue at Parc de Saint-Cloud. But Winehouse never left London for Paris.
"We were told by Winehouse's agent at 8 p.m. that she would not be there and we were forced to cancel the performance," the statement said.
"We have still not been given any explanation of the exact reasons for her absence. We are very sorry about this situation and share the disappointment of the festival-goers."
Nearly 80,000 people are reported to have attended this year's event. Featured performers included R.E.M., the Kaiser Chiefs, Kate Nash, The Roots and Jamie Lidell, among others. The annual festival was initiated in 2003.