This song was written by The Killers frontman Brandon Flowers and originally intended to be performed by the band. Robbie Williams explained to The Sun:
"The Killers sound is unique and I think Brandon Flowers is one of the best songwriters on the planet. I was at (producer) Stuart Price's house and he'd just been working with Brandon and played me this song.
He said, 'Have a listen to this'. And all the way through it I was thinking, 'I want this song'. And unbelievably they let me have it and didn't have it for themselves."
The Isley Brother's song, "Contagious," peaked at #19 on the Billboard Hot 100. This meant that the band of brothers became the first group to score a Top 50 hit in six consecutive decades on the chart.
Ariana Grande's collaboration with Zedd, "Break Free" came about after the Russian-German producer overheard Grande performing at a label showcase while he was backstage, and he mentioned to his team that he wanted to work with her.