^yeah but lou-e-lou and carillo is more likely to happen for the obvious reasons. Jacka's got that effortless tone in his voice and it works to his advantage more than anyone else that does it IMO. Carillo's got some laid-back type of spit as well.
Thats just one point but on the other hand, other than doing a collabo on similarities, look how different XO, Wood and Jacka's spits are and they came hella tight on If I Die Tonite.