Mitch Winehouse has slammed New York City's mayor.

The former taxi driver - the father of late singer Amy Winehouse - took a public swipe at Mayor Bloomberg during The Amy Winehouse Foundation gala at the Waldorf-Astoria hotel last Thursday (21.03.13), claiming he has failed to contribute to the charity in a meaningful way.

Nas is to perform at a special concert commemorating Amy Winehouse's 30th birthday, Mitch Winehouse has revealed.

The rapper - who duetted with the late singer on his track 'Cherry Wine' - is to take to the stage at the event, which is being held next September at The Roundhouse in Camden, north London, to raise money for The Amy Winehouse Foundation.