'Xxplosive' by Dr Dre - Guitar Tutorial

            Alright I'm not exactly sure about this one, I just kind of did a half-assed job; 
but you can check it out and let me know what you think.

e|--------11----15(then hit the whammy bar down twice)-|
b|--11-13----13----------------------------------------|
g|-----------------------------------------------------|
d|-----------------------------------------------------|
a|-----------------------------------------------------|
E|-----------------------------------------------------|

If you don't have a whammy bar, you can do what I do.
1.  Place the palm of your hand on the body of the guitar right above the spot where 
the neck overlaps it.
2.  Place your left palm on the back of the neck somewhere around the 5th fret.
3.  Push the neck forward with your left palm, and the body back towards you with your 
right.

Yeah, it does weaken your neck a bit (so I don't suggest doing this with a Paul Reed Smith),
but your neck should be able to handle it.