Katy Perry has lavished praised on fellow popster Robyn, lauding her the "epitome of effortless cool".

The 'I Kissed A Girl' singer took time to praise Robyn's fashion sense ahead of appearing on Saturday Night Live together tonight (December 10), calling her a 'tastemaker' of style - even suggesting that Robyn needs to give her advice. She told MTV News:

"I don't need to give her advice. She needs to give me advice. She's cool, dude. She makes everyone cooler...She's just, like, the epitome of effortless cool, like you look at her wardrobe and you think, 'I don't think I could wear that,' but she wears it and she just owns it."

She also spoke of Robyn's penchant for platform shoes - claiming that she started a trend. She added:

"She's always wearing platform shoes, whether it's, like, creepers or Prada shoes. And she was wearing them way back when, in the beginning of the tour. And now Prada's doing them; everyone's wearing them. Rihanna's wearing them. I'm wearing them after all of the convincing, so she's kind of the tastemaker."

Watch Katy Perry's 'Last Friday Night' below: