As those who have flown from Sydney to LA in an economy middle seat are well aware, 13 hours can feel like eternity. Imagine having to talk the whole time. Imagine there's a backbeat, and your words, which you make up on the spot, have to match the rhythm of the music. With only three-second breaks at a time. For 13 hours. It seems beyond human capabilities, but rapper Street Light did it this year. Standing in front of a DJ booth in LA's Think Tank Gallery, the Detroit native rocked the mic like a vandal, destroying the pre-existing Longest Freestyle Rap record of 12 hours. (Note: his record was recently beaten.)