Expert Guitar. This one was harder to sight read than the Nugent one, but still not terribly difficult. Being able to tap those solos makes it really forgiving.
This is the same exact chart (unless I didn't notice something), but this is the version you play when you beat Hot For Teacher, prior to unlocking the final venue/gig.
Welcome to the Jungle! Slash will play along with you anytime you play this song after you have beaten it, whether in career or quickplay (so far as I know).
Since I keep getting messages giving me advice on how to beat Lou, I figured I'd post here to let everyone know I beat him a few days ago lol. I had taken a break from GH3 for the last week because my left hand was too cramped, but I got him ;p Thanks for all the comments, enjoy the game!