The MTV VMAs 2013 are here. The annual show will go down live on August 25th at 9p.m. EST from Brooklyn, New York.This year, there is a pre-show performance by Ariana Grande and Austin Mahone. The main show is stocked with huge names like Bruno Mars, Macklemore & Ryan Lewis, Miley Cyrus, Robin Thicke, Katy Perry, Kanye West and the winner of this year's Michael Jackson Video Vanguard Award, Justin Timberlake.

Take a look back at the best and worst dressed at the MTV Video Music Awards. Fans can expect planty of wacky fashion again at this year's 2013 MTV Video Music Awards.

Katy Perry's new single 'Roar' might beat Lady Gaga's applause on download sales. 'Roar' has already beat 'Applause' on the charts. Gaga's controversial Twitter tactic doesn't seem to have helped the sales for 'Applause.' In other news, Gaga lashed out at Perez Hilton for stalking her in her apartment complex.

See what Hollywood's biggest celebrities were up to this week. See what Hollywood's biggest celebrities were up to this week. - John Mayer and Katy Perry celebrated the release of her new single, Roar, at Manhattan restaurant, The Lion, on Monday night.