Machine Head frontman Robb Flynn is one of the more outspoken rockers in metal, which makes his recent digs at Avenged Sevenfold all the more interesting. In a lengthy post, Flynn called the band's 'Hail to the King' effort a "covers album," and then offered a Top 10 comments poking fun at how similar the music is to some of the band's musical idols.

As Flynn is known for having a biting sense of humor, it's completely possible that the Machine Head frontman was just having a good natured go at the upstart band with whom he has likely crossed paths on numerous occasions. On the other hand, it could be that Flynn is simply not a fan of the album at all and chose to dig in. It's obvious that either way the 'Hail to the King' album bothered him enough to warrant his missive, as he cited references to Guns N' Roses, Metallica, AC/DC and other metal outfits he feels the band lifted from.

Meanwhile, Avenged Sevenfold's M. Shadows seemed to be perplexed by Flynn's posting. Shadows took the high road in a radio interview saying that he's always been cool with Flynn and that he read it as a joke. He also admitted that there were points Flynn made that he agrees with in terms of bands serving as inspirations. The frontman also stated that even if it wasn't a joke, everyone has a right to their opinion and it didn't affect his relationship with Machine Head's members.

So what do you think Noisecreep readers? Was Robb Flynn right to call out Avenged Sevenfold for lifting too much from other bands? Or are Flynn's accusations baseless, with 'Hail to the King' being a disc that stands on its own? Or does it even matter if he was right or wrong and should have simply kept his opinion to himself? Tell us your thoughts in the Readers Poll below.