Where did you get the dates from?
April 1st... there's more information...Source: http://www.mayhemfest.com/images/May...eleasFINAL.pdf
PARTY LIKE A ROCK STAR? Hmmmm... this is going to be Ozzfest without Ozzy.
Jaco died for our sins so that modern bass players could be free to play more and be heard.