Metallica's Lars Ulrich says 'St Anger' album was about 'hurting the listener'
Drummer says he understands why some people have doubts about their 2003 comeback record
Metallica joined onstage by Anthrax, Slayer, Megadeth, Diamond Head at Sonisphere
The Big Four all come onstage to help the headliners out
Metallica, Slayer, Anthrax, Megadeth for Sonisphere festival
'The Big 4' are set to descend on Sonisphere today (July 8)
Metallica give Sonisphere headline set hints? - video
Thrash titans kick off their European tour in Germany and Sweden
Lou Reed: 'The music I've done with Metallica is the best thing done by anyone, ever'
Reed adds that collaboration with thrash titans will be out by November
Lou Reed: 'Metallica collaboration is a marriage made in heaven'
Metallica also say joint project is '90 per cent finished'
Metallica set to release album with Lou Reed
Metal legends confirm they have just finished full LP with the former Velvet Underground man
Metallica to release 'Monopoly Metallica' game next week?
Metallers expected to put their twist on the classic board game
Sonisphere Festival 2011 line-up
All the bands confirmed for the Knebworth metal bash
Sonisphere 2011 line-up
Check out which bands are set to play the July festival