British singer Amy Winehouse performs at the 46664 concert in honour of Nelson Mandela in Hyde Park, London June 27, 2008. The event was organized to raise funds for Nelson Mandela's HIV/AIDS "46664" campaign, named after his prison number. Exactly 46,664 people were expected to attend the event, which also celebrates the former South African president's 90th birthday on July 18.[Agencies]

Amy Winehouse has a special kitten-shaped crack cocaine pipe, new photographs have revealed. In exclusive pictures taken inside the troubled singer's North London home, the odd pipe - an instrument to smoke crack cocaine through - is seen standing next to the MTV Artist's Choice award she won at the 2007 ceremony.

Amy appears in the photos, which were taken after her win, wearing a polka-dot bra accessorised with a variety of jewellery while playing on a set of keyboards. Last week, Amy was taken to hospital after suffering a series of fits following an overdose of medication she was taking to help her combat her drug addiction.

The 24-year-old singer was kept overnight in London's University College Hospital for observation.

Following the incident, Amy's father Mitch said: "Amy had a bad reaction to some medication. She took two doses instead of one by mistake."