Linkin Park star Chester Bennington rocked on at Los Angeles' trendy METAL SKOOL show last night (28AUG06) when he joined the resident heavy rock tribute act onstage at the Key Club. With Paris Hilton briefly among the crowd, the CRAWLING singer followed Kelly Clarkson's turn two weeks ago and joined the colourful rockers onstage for a rendition of GUNS N' ROSES' WELCOME TO THE JUNGLE. One Metal Skool regular says, "He was thrilled when he was spotted in the crowd and then asked to join the group onstage."