Metallica had the largest audience ever at the O2 arena back in September last year, the mighty Metallica smashed their own record on Saturday March 28th 2009.
19,017 fans helped the band set a new high at one of the world's most popular venues. The feat was made all the more extraordinary by being the third Metallica date at the arena in six months.
The fan-club-only show in September 2008 set a benchmark of 18,000, which stood until Saturday night. It celebrated the release of latest album "Death Magnetic".
