I had seen SlipKnot on some tv shows a few years back and other than the weird costumes they wear, they didn't do anything for me. I found them boring and the songs I heard by them were never memorable. If I wanted to see a band in costumes and such I would rather see Gwar. Gwar was performing in costumes long before SlipKnot even had a recording deal. I have a Gwar bootleg video which is amazing. Everybody in the front few rows gets drenched in blood (Including the bouncers in front of the stage).