YOLO! ‘You Only Live Once’ – and once is enough if you do it right! On the other hand, maybe ‘You Ought to Look Out,’ you can’t be too careful you know…Or can you? Jimmy Fallon and the Roots join American comedy troupe ‘The Lonely Island’ as they musically examine one of the questions of the ages. The Lonely Island premiered the single as a ‘digital short’ on the January 26, 2013 episode of ‘Saturday Night Live.’ It can be found on ‘The Wack Album’ Hey, who’s the ‘thug’ with a mic and wearing a hoodie?