Lady Gaga and Eminem to play first YouTube Music Awards

Lady Gaga, Eminem and Arcade Fire, among others, will perform at the event in New York on 3 November.
Nominations will be chosen based on videos that have been watched and shared over the past year.
Users will then be asked to choose winners by sharing the nominees across social media.
The ceremony will be streamed live online with nominees for the awards being announced on 17 October.