Metallica fans do something incredible as they arrive in Cardiff for gig (opens original article in a new tab)

Metallica fans in Cardiff are supporting blood donation efforts around the band's concert.

• Metallica fans in Cardiff are participating in blood donation sessions before and after the band's concert.
• The Welsh Blood Service partnered with Metallica for the M72 World Tour to promote blood donation.
• Donation events started a week before the concert and will continue for a week after.