Eminem is back, and this time he's not shy about showing off his rapping prowess. His latest single titled "Rap God" features the rapper spitting out words so quickly that listeners have referred to it as "supersonic speed."  The insanity begins at the 4:26 mark:

Based on the lyrics provided by Rap Genius, he's reading out ten lines of lyrics (97 words) in 15 seconds, which averages at about six and a half words per second. Try to do that without biting on your tongue:
"Uh, sama lamaa duma lamaa you assuming I'm a human
What I gotta do to get it through to you I'm superhuman
Innovative and I'm made of rubber
So that anything you say is ricocheting off of me and it'll glue to you
I'm never stating, more than ever demonstrating
How to give a motherf---in' audience a feeling like it's levitating
Never fading, and I know the haters are forever waiting
For the day that they can say I fell off, they'd be celebrating
Cause I know the way to get 'em motivated
I make elevating music …"