It was pretty busy for Glassjaw, unsurprisingly, as they are a band who have a strong following and are huge globally. It's a band who are known for pulling out of shows due to Daryl Palumbo's health condition, but luckily they didn't do this at Groezrock. Palumbo seemed to resemble a wannabe Liam Gallagher when he arrived on stage, wearing a coat and swigging from a beer bottle. Soon he warmed up and the coat was removed and the screaming commenced. The set was pretty good but I couldn't help feeling that there was something missing. Perhaps it was wrong to believe the hype.

Agnostic Front had a great reception from the crowd at the Eastpak stage. They are one of New York's finest hardcore exports and played a solid set, with frontman Roger Miret giving it his all on stage throughout.

Pop punkers Zebrahead never fail to disappoint. I've seen them at small venues and Slam Dunk and now Groezrock. And they are definitely consistent in their approach to playing shows. Bouncy pop punk and lots of chat with the crowd made for an interactive and enjoyable set.

Another band with a bit of a reputation for being important to the punk scene are Strike Anywhere. Playing this year on the main stage the band played tracks spanning across their four albums including 'Sunset on 32nd' from Change is a Sound, and 'I'm your opposite number' from recent release Iron Front. The band were as active as ever with vocalist Thomas Barnett leaping all over the stage with dreadlocks flailing.

A Wilhelm Scream played a great set full of tracks from all of their back catalogue. The Eastpak tent was packed out and so busy it seemed that perhaps they were playing the wrong stage as it was difficult to get a good view of the band.

Following Strike Anywhere on the main stage were Chicago band 88 Fingers Louie. They were glad to return to Groezrock after an 11 year absence. They were an unusual act to place on the main stage being relatively unknown in comparison to many of the other acts playing that day. However they played a tight set and seemed to have fun.

Bouncing Souls had to be one of the highlights of the festival. By the time they started playing their second song, singer Greg Attonito had jumped down from the stage and decided to meet the crowd on the barrier. He spent a lot of time walking down the barrier, singing and shaking people's hands. They sounded better than previous performances we had witnessed. Good choice of songs on the set list with opener and fan favourite 'True Believers', 'Lean on Sheena' and 'Gasoline' from latest release Ghosts on the Boardwalk.

Mustard Plug's singer Dave Kirchgessner looked like he'd either had a bit of a heavy night or he wanted to be Dicky Barrett from the MMBs as he appeared wearing sunglasses and a suit. The opener for the set was 'Skank by Numbers' which was a pleasant surprise. Unfortunately the sound for the rest of the set was pretty poor and it was difficult to enjoy the songs that followed, with levels for the vocals and brass being far too low on numerous occasions.

One band a lot of people were looking forward to were Canadian pop punkers Sum 41. I was expecting the kind of thing you see in their videos but I felt rather disappointed by their live show. They didn't seem to have much of a presence and there was a bit too much newer material rather than the stuff we grew up listening to. Fat Lip wasn't played until the end, and that was after a ridiculously long drawn out version of 'Makes No Difference' song. The band invited people onto the stage but seemed to forget they were there.

Always full of energy, The Bronx were on top form on the Eastpak stage and they are an act always tough to follow. Singer Matt Caughthran never keeping still for a minute and shaking his head and stamping his feet in time to the music. This was the band's second performance of the day having appeared earlier as Mariachi El Bronx on the Etnies stage.

The third time seeing AFI in two weeks and once again not at all disappointed. The opening songs were the same as the ones from the UK tour and the performance was the same, but it was equally as good and high energy as ever. Medicate was the opener with Girl's Not Grey and Leaving Song following. Great catchy songs to sing a long to and a sure way to get the crowd going. The band had three platforms set up at the front of the stage and these were used by the band members to launch themselves across the stage. Dramatic and perfected would be two words to suitably describe their performance.