Rihanna, Lady Gaga and Miley Cyrus Nominated for First YouTube Music Awards

A rap battle between Barack Obama and Mitt Romney, Psy’s kooky dancing and a Justin Bieber pool party all feature among the videos nominated for YouTube’s first-ever Music Awards. Fans can vote for their favorite catchy clips across six categories, including video and artist of the year, top fan remix or parody video, and best breakthrough artist, YouTube announced on Monday. Eminem, Lady Gaga, Arcade Fire and M.I.A. are on the list of performers that the video-sharing site has bagged to app...