Can anyone beat Swift's Halloween costume? See Katy Perry as a Halloween cheese puff Watch Alexa Goddard acoustic performance Channel 5 will air MTV EMAs 2014 live Rita Ora: Calvin was right guy at wrong time 14 stunning Oscar de la Renta celeb gowns Brand "really enjoyed" Perry marriage Iggy Azalea leads AMA 2014 nominations Katy Perry to play Super Bowl show What's the UK's most streamed song of 2014? Nicki Minaj to host MTV EMAs in Glasgow Watch Betty Who discuss song lyrics MTV EMAs 2014: The nominees in full Katy Perry leads MTV EMA nominations Meghan Trainor wins first US No.1 single Britney talks new album, wants Katy Perry Charli XCX to support Katy Perry Lilly Wood and Robin Schulz hit number 1 Perry impersonates Britney in denim dress Miley Cyrus, Katy Perry win at MTV VMAs Britney does Woody Woodpecker impression Coldplay, Katy Perry for Super Bowl show? Watch 8 embarrassing musical mishaps Madonna thanks fans for birthday wishes Katy Perry shares nose-piercing video Magic! continue US Hot 100 chart reign Katy Perry denies stealing comics style Katy Perry: 'I prefer dating famous guys' Katy Perry wants to record acoustic album Music video round-up: 5SOS, Katy Perry Watch Katy Perry's new music video What music video is 2014's most played? The many surprising romances of Benji Madden Madonna's new album: What we know so far Listen to Katy Perry's new single Is Katy Perry about to punch Madonna? Does Cocozza really have just 78p to his name? MTV VMAs 2014: Nominations in full Beyoncé leads MTV VMAs nominations Which Katy Perry song will make you happy?