Cerys Matthews promises 'madness' at Womex gala concert

Singer Cerys Matthews hosts a concert celebrating Wales' musical heritage to officially open the Womex world music showcase and trade fair in Cardiff.

Some 2,500 delegates are due to attend the event, which runs until Sunday.

Treorchy Male Choir, Ballet Cymru and children from Cardiff Bay are among those performing at the Wales Millennium Centre concert.

Matthews, artistic director of the opening concert, told BBC Wales arts and media correspondent Huw Thomas what to expect.