It's a tie between the up in smoke tour (em,dre, and them) and the Pledge of Aligiance Tour(Slipknot,Mudvayne) Both were some bad ass concerts on two different levels.

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<marquee>FUCK YOU!!! YEAH YOU BITCH</marquee>

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slept on battle
http://www.rapbattles.com/forum/showthread.php?t=105181
http://www.rapbattles.com/forum/showthread.php?t=113861