Machine Head

Machine Head has replaced Bullet For My Valentine as one of the opening acts for Metallica on July 8 at the Wembley Stadium in London, England. Also scheduled to appear are H.I.M. and Mastodon.

Bullet For My Valentine cancelled its appearance at Wembley and several other European dates in order to allow frontman Matt Tuck to undergo tonsillectomy (a surgical procedure in which the tonsils are removed).