To the rock band Korn [ tickets ], "Family Values" means bringing together some of the best bands of that genre to a series of summer sheds throughout the United States, including Phoenix's Cricket Wireless Pavilion.

But at the show on Sunday (8/26), in 101-degree heat, it also meant lots of moshing, beer throwing and attempts to set fire to the lawn seating area, despite threats of prosecution made very clear on videoscreens that bookend the main stage.

Nu-metal godfathers Korn [ tickets ] headlined the event, performing a good chunk of its latest album, which is untitled. Fans, many of whom were getting aggressive after nearly 10 hours in the heat, sang along to every song, and flashed devil horns to the band, which is led by singer Jonathan Davis, bassist Fieldy and guitarist Munkey. The line-up was rounded out by a back-up singer, keyboardist Zac Baird, drummer Joey Jordison of Slipknot and second guitarist Clint Lowery, formerly of Sevendust.

The wide open, simple stage, framed on the left and right with giant catwalks, allowed fans to watch Korn's every move. Lead singer Davis, wearing a camouflage kilt, ran up and down the ramps, never missing a beat. Unfortunately, his vocals, bolstered by headbanging back-up singer Kalen Chase, were so badly muffled that it rendered many songs practically unidentifiable. Fieldy's bass and Munky's guitar parts further enhanced the problem as the volume of the two instruments was set higher than Davis' vocals. During soft, quiet interludes, an annoying high-pitched squeal emanated through the speakers.

Evanescence [ tickets ], fronted by newlywed Amy Lee, suffered from the same ailment. Her normally pristine vocals were drowned out by her band members' instruments. Luckily, her stage show, which incorporates ballet-like dance moves, hair flipping and spots behind the piano, made up for what was lost in the vocals. At least she was interesting to watch during Evanescence's hourlong set.

Also on the mainstage was Hellyeah [ tickets ], drummer Vinnie Paul's post-Damageplan project fronted by Mudvayne's Chad Gray and his guitarist Greg Tribbett. Gray's screaming was audibly clear, although at times, Paul's massive drum kit took over the sound. Paul acknowledged his late brother, guitarist "Dimebag" Darrell, who was shot to death on stage during a Damageplan show. That seemed to be what the fervent crowd was waiting for. He encouraged the crowd to yell so loud that, "My man Dime is able to hear you." That and any mention of the soldiers serving the country overseas earned the most applause of the night. The highlight of the set, and perhaps the entire show, was Hellyeah's rendition of its single "Alcohaulin' Ass" The song, which begins in a slow alt-country beat, allowed Gray to show off his nonmetal vocals, proving to the audience he's far beyond screaming.

Although Hellyeah--which also includes guitarist Tom Maxwell and bassist Bob Zilla--is comprised of music industry veterans, the group is poised to be one of the break-out bands of the traveling festival. Canada's Neurosonic [ tickets ] is right up there with Hellyeah with its brand of art-rock-meets-funk brand of alternative rock. Expect big things with the single "So Many People."

Recent Hollywood Records signees Atreyu [ tickets ], as well as Flyleaf [ tickets ] (who has seemingly played every festival in the last two years), Droid and Trivium [ tickets ] also graced the main stage. Trivium, obvious Metallica admirers, seemed to be a crowd favorite, but Atreyu won the T-shirt battle hands down, selling loads of merchandise.