Slipknot at 3Arena, Dublin - 'Slipknot's deafening energy is more than a match for Storm Rachel raging outside'
Miley Cyrus, twerking and the hyper sexualization of pop are the bones of contention in recent years, but a concerned parent's worst nightmare used to be an American heavy metal band wearing grotesque masks called Slipknot.
In August 2000, a Slipknot concert in the shabby old Point Depot was pulled following complaints from parental associations, who raised objections to a show that reputedly featured vomiting and urinating.
In 2015, Slipknot open the European leg of their Prepare for Hell tour with fellow nu-metal veterans Korn as nine enthusiastic grown men dressed up in a variety of distorted clown masks. They wage all out war on their instruments and it is stunning sight to behold, but far removed from the headline grabbing shock and awe spectacle the band peddled during their notorious early days.
This is not to say they've mellowed too much with age. Front man Corey Taylor refers to the band going through some "dark times." Bassist Paul 'The Pig' Gray died due to an accidental overdose in 2010. Slipknot soldiered on and his band mates named their fifth album 5: The Gray Chapter in his memory.
As unlikely hit songs such as 'Vermilion' and 'Duality' prove, you can actually whistle along to a Slipknot chorus. Beneath all the thunderous bluster and theatrical masks, there is a psychedelic pop band champing at the bit to get out.
Their innovation is still resonating a decade and a half later, as 5: The Gray Chapter debuted at number one in the US, Japan, Canada, Russia and Switzerland.
In fairness, there isn't enough dressing up, looking stupid and acting the clown in rock n' roll, which has retreated into a stiflingly bland comfort zone.
As Storm Rachel rages outside the venue, Slipknot's deafening energy is more than a match for her.