“The Days” Is A Song By Swedish DJ Avicii With Uncredited Vocals And Background Vocals Of Robbie Williams And Brandon Flowers. The Song Was Received With Good Reviews Commending The Upbeat Feeling Of The Song The Lyrics And The Vocals Of Robbie Williams. A Version Of The Song With Vocals Solely By Brandon Flowers Has Also Been Released. This Is The First Song That Robbie Had In The US Charts Albeit As An Uncredited Artist Since ‘Angels’ In 1999 And Avicii’s Fifth In US Charts.