The Black Sabbath singer died aged 76 in July last year, just over two weeks after his Back To The Beginning farewell concert.

The hip-hop group apologised to the family of Mr Amess after footage emerged from a gig allegedly showing one member saying ‘kill your local MP’.

Footage emerged in which a member of the Irish rap group appeared to say: ‘The only good Tory is a dead Tory. Kill your local MP.’

The 71-year-old wife of former Black Sabbath singer Ozzy Osbourne was a judge on The X Factor and America’s Got Talent alongside Simon Cowell