Paramore frontwoman Hayley Williams has shared an acoustic cover of Björk’s “Unison.”

“Someone asked me to do a @bjork song a while back,” Williams wrote on Twitter. “I’d actually hoped to cover a different song of hers live this year but I guess that will have to wait until some other time… anyway, this one has to be in my top 5 – ‘Unison.’ Apologies for the crudely casual rendition.”

Watch the cover in full below.