Well, last night, while the musician-turned-actor was once again on the talk show, this time promoting Friends With Benefits, we think it's pretty safe to say that lightning struck TWICE!
Check out the duo's History of Rap, Part 2 (above)!
We didn't think it would be possible to out-do the first version, but this - well, it's just effing epic!
Hurray! This NEEDS to become a staple everytime Justin makes an appearance, guys!
What do U think? Which version do you prefer? The first or second?