Amy Winehouse was denied a duet with Stevie Wonder at Hard Rock Calling after the Motown legend changed his mind, according to the tabloids.
Wonder is said to have invited Winehouse to sing with him, however, when the time came to perform she was turned away by the stage manager.
According to the Daily Star, Winehouse was not the only act denied a duet: "Stevie had planned to duet with Corinne Bailey Rae and Jay Kay from Jamiroquai but he decided it would be better to give the fans the solo set they had expected to see."
Stevie Wonder headlined the Sunday line-up, with Pearl Jam and Paul McCartney headlining Friday and Sunday respectively.
Hard Rock Calling 2010 took place at Hyde Park, London, from 25-27 June.