‘He works harder than a lot of people I know,’ she says of Best New Artist nominee and pal. By Jocelyn Vena, with reporting by Christina Garibaldi Justin Bieber Photo: Jeffrey Ufberg/ Getty Images Justin Bieber is in for the fight of his short career at the MTV Video Music Awards . The “Baby” singer will have to fend off Ke$ha (“Tik Tok”), Jason Der
