I'm a big fan of what Girl Talk does and was wondering if there were any tutorials online about how he creates his stuff. I'd give my right nut to be able to come up with some stuff like that. Totally brilliant.
Easy ..... Get a looped beat, loop the intro to a classic love or rock song and throw over a rap acapella. After four bars move onto the next set of loops.
But don't forget to throw in the odd out of key moment if you want to truly emulate him ha.