Pre-Grammys Style-Off: Rihanna's MC Hammer Trousers V Katy Perry's Piano Shoes

20/11/2017 09:51 GMT

They're the best of pals off the red carpet, but Katy Perry made a sartorial statement with her turquoise skirt almost matching her blue bob, and a shocking-pink top breaking up the two.

There was also a pair of never-before-seen piano shoes on show. What do you think - did they hit all the right notes?