Paul Hancock of the facility said of eight food samples tested so far "all are negative for equine DNA".

BBC: Worcestershire County Council Scientific Services

It's not an unfair charge: See Steely Dan's 2001 Album of the Year victory over Beck, Eminem and Radiohead (plus Paul Simon), or Herbie Hancock's win over Kanye West and Amy Winehouse in 2008.

NPR: Could 'Single Ladies' Win Song Of The Year?

Herbie Hancock is among the other stars playing in the opening weekend, with Paul Simon, Domino and Lionel Richie performing next weekend.

BBC: NEWS | Entertainment | Dylan opens New Orleans jazz fest