In July 2011 Leona Lewis Added Vocals To Avicii's Track Penguin. The Avicii Track Was Originally Created From A Sample From Penguin Café Orchestra's Perpetuum Mobile. There Has Been A Lot Of Rumours About This Song's Copyright Issues On Leona's Twitter She Said "With Regards To My Song Avicii Was Aware & Agreeing Publishing Splits For Himself And His Manager When Avicii Sent His Track Out To Have A Song Written Over It I Totally Fell In Love With This Version And I Think He's Super Talented X " Avicii Stated On His Twitter "To Answer Everyone The First Time I Heard Leona Lewis Collide Was Today. I Didn’t Produce It And Neither Me Or My Manager Could Approve It… I’m Just Upset For Someone Taking Credit Of Our Idea Before I Had A Chance To Release It…To Be Clear Im Not Taking Credit For The Melody Everything Was Cleared With Penguin Cafe Orchestra And Simon Jeffes Who Wrote The Song . And For The Time And Effort That Has Been Put Into This By My Manager And Label" In August 2011 An Agreement Was Made Without The Case Ending Up In Court. A Statement From Leona's Label Syco Said "It Is Announced Today That Leona Lewis And Avicii Will Work Together On The Forthcoming Single Collide." Avicii Wrote On His Twitter Page "Glad To Have Finally Resolved Situation With Leona. So Happy To Move On With Leona And Focus On Having A Hit Together."