Lady Gaga and Katy Perry go head-to-head at the MTV Europe Music Awards in November, with five nominations apiece. The US pop princesses are both shortlisted in four categories - best pop act, best song, best female act and best video. Completing the nominations for Lady Gaga is best live act and for Katy Perry “best world stage performance”. Elsewhere in the nominations list, rapper Eminem has four nominations including best song, best male act, best hip hop and best video for his Rihanna collaboration “Love the Way You Lie”. British stadium rockers Muse, along with Thirty Seconds to Mars, Linkin Park and Kings of Leon, find themselves up against “Prince of Darkness” Ozzy Osbourne in the best rock category. Pop phenomenon Justin Bieber, Ke$ha, B.o.B, Plan B and Jason Derulo are nominated for best new act. Perry and Linkin Park are confirmed to perform at the annual event, one of pop music's biggest nights outside the United States. The MTV Europe Music Awards are to be held in Madrid on Nov. 7.