Amy Winehouse showed up at Bestival on Saturday, late, moody and drunk - before collapsing on stage and forgetting the words to one of her songs. But, hey, at least she showed!

The Rehab singer arrived late to a crowd of disgruntled fans. It was later reported that she was insistent the ground dried before she left her car.

Leading up to her performance, the soulful star reportedly indulged on her favourite tipple, Jack Daniels, causing her to fall flat on her face during her set.

After being helped to her feet she then proceeded to forget the words to Back To Black.

The Mirror quotes a source as saying, "She changed songs half way through, saying 'Switch to Rehab. Faster, faster. We have got one song left but I know you ain't that bothered'."

Check out Amy in action below: