KNEBWORTH Park was rocking and Rollin to the sounds of Limp Bizkit at the Sonisphere Festival earlier this afternoon. The chart-topping American nu-metal rappers from Jacksonville, Florida, bounced onto the main Apollo stage to My Generation. Singer Fred

KNEBWORTH Park was rocking and Rollin' to the sounds of Limp Bizkit at the Sonisphere Festival earlier this afternoon.

The chart-topping American nu-metal rappers from Jacksonville, Florida, bounced onto the main Apollo stage to My Generation.

Singer Fred Durst, drummer John Otto, guitarist Wes Borland and the rest of the Bizkit crew later launched into their UK No 1 hit Rollin' to the delight of the 45,000 rock fans inside Knebworth.

Limp Bizkit followed Sonisphere 'special guests' Machine Head onto the main stage.

The San Francisco metalheads dropped out of the festival last month following a very public row with organisers following Limp Bizkit's addition to the bill above them.

However, after playing the Spanish, Swedish and Finnish legs of the first European touring festival in recent weeks, Machine Head decided to play Knebworth in the end.

Frontman Rob Flynn dedicated the set to the fans, bellowing: "Sonisphere this is beautiful."

The fans responded by creating the biggest circle pit Knebworth has ever seen.

Between Machine Head and Limp Bizkit performing, Welsh rockers Feeder burst onto the smaller Saturn stage, opening with Pushing the Senses.

The likes of Buckcherry, Saxon, Killing Joke, Mastodon, Lamb of God and Alice in Chains have also played the main two outdoor stages so far today (Sunday).

Trent Reznor's Nine Inch Nails have just taken to the Apollo stage for their final ever European date.

Avenged Sevenfold will then round off the Saturn second stage for the night.

Headliners Metallica are due to play a two-hour set from 8.45pm - and fans can expect fireworks.

Sonisphere Festival director Stuart Galbraith said: "I've been with them across Europe these past few weeks and Metallica are on top of their game at the moment.

"You are in for a treat!"

* See this Wednesday's Welwyn & Hatfield Times for more Sonisphere coverage.