While you were considering pulling a scary prank on your boss, we finally figured out the mechanics behind the first ever YouTube Music Awards and it's pretty simple, really. Just why is everyone talking about it? 'Cos it's going to be mega-cool, that's why. Lady Gaga, Eminem and M.I.A. are all performing, filmmaker Spike Jonze (Scarlett Johansson and Joaquin Phoenix star in his upcoming film Her) is the creative director and funnyman Jason Schwartzman will host, so expect LOLz. Here's a super-informative vid from comedian co-host Reggie Watts explaining how any time you share a video from the nominated shortlist (categories include Phenomenon, Breakthrough, Artist of the Year…), you're casting a vote. Pretty easy, huh? Be warned, voting closes today, so get sharing and tune in to YouTube on Sunday as they stream the awards live from New York. How very modern.