Perry habla:
Katy Perry has opened up about going head-to-head in the charts with Lady Gaga.
Perry, who put out her new single 'Roar' earlier this week, is now up against Gaga's 'Applause' after it was rush-released to iTunes yesterday (August 12).
"It's all about the music and I really agree with her message," Perry said of Gaga's track to AMP Radio. "I've always been a fan of hers and I like to see her evolution.
"I think that it's also nice that we're all in the same kind of cycle together because it really keeps us both on our toes… It's not that we feel competition, it's that we keep each other on each other's toes and it's a healthy thing."