MORE acts for the Sonisphere Festival at Knebworth will be revealed later this week.A major line-up announcement that will finish off quite nicely the two-day camping event at Knebworth House is expected in the next couple of days.The inaugural Sonisp

MORE acts for the Sonisphere Festival at Knebworth will be revealed later this week.

A major line-up announcement that will finish off "quite nicely" the two-day camping event at Knebworth House is expected in the next couple of days.

The inaugural Sonisphere spectacular at the Hertfordshire stately home on August 1-2 will be headlined by nu-metal favourites Linkin Park and rock gods Metallica.

Veteran festival organiser Stuart Galbraith told Metal Hammer earlier this month that there will be another Sonisphere announcement after Easter.

He said: "I'm happy with what we've announced for Sonisphere so far and the rest of the announcements that we've got coming up after Easter will finish the bill off quite nicely."

As well as Metallica, who top the bill on the Sunday with a full two-hour set, and Saturday headliners Linkin Park, also playing Knebworth are Nine Inch Nails, Bullet For My Valentine, Alice In Chains and Anthrax.

Others confirmed so far for the UK leg of Sonisphere include Machine Head, Avenged Sevenfold, Lamb Of God, Mastodon, Airbourne, Thin Lizzy, The Sword and Killing Joke.