USA Today Music — Is this 'Tomorrowland' or what?             more info

Idolator — Her latest is directed by Matthew Cullen, of “California Gurls” and “Dark Horse” fame. more info

Consequence of Sound — Step on up for the giant hamster wheel! Behold the nuclear show! more info

Stereogum — A little while ago, Katy Perry shared her new single "Chained To The Rhythm," which she co-wrote with Sia and which Max Martin produced. Then she sang the song live for the first time in an elaborate Grammys performance. And today, the song gets its ... more info

E! Online — The American Dream isn't perfect in Katy Perry's "Chained to the Rhythm" music video. The pop star released the music video for her latest single Tuesday morning, giving... more info

MTV.co.uk News — Also we want pink hair. more info

The Daily Mail — The 32-year-old Firework star arrived at the bash in a kooky patchwork coat before whipping off the garment to show a stunning Bardot top and pleated skirt combo more info

The Mirror — The singer rocks her new look more info

E! Online — When you think of pop music, who do you think of? Katy Perry, Lady Gaga, Ariana Grande, Britney Spears, Rihanna, Taylor Swift, Fifth Harmony--the list goes on. All extremely famous female... more info

PopSugar UK — Bruno Mars is an incredibly talented singer, but did you know he's also a writing genius? Not only is he a part of The Smeezingtons (a songwriting and production team), but he's also penned a handful of hits you probably didn't even know came from hi... more info