By The Grace Of God

This piano ballad makes it clear that Perry struggled with the breakdown of her marriage to Russell Brand. She admitted to Billboard magazine that the start of the song where she is lying on the floor of a bathroom, fighting suicidal thoughts actually happened. "That song is evident of how tough it really was at a certain point. I asked myself, 'Do I want to endure? Should I continue living?'" said the Californian singer. "All the songs are real-life moments. I can only write autobiographically. I put all the evidence in the music. I tell my fans if they want to know the real truth about stuff, just listen to the songs."

Perry croons in the chorus how God gave her the strength to carry on after the failure of her marriage: By the grace of God I picked myself back up I put one foot in the front the other Katy was brought up in a Christian household and both her parents are pastors. She sung in church up to the age of 17 and her first release was a Christian music album released by a Christian record label.

Perry debuted this ballad during her headline set at the iTunes Festival in London on September 30, 2013. She explained that it was the first song she wrote with her frequent collaborator, Canadian songwriter/producer Greg Wells back in November 2012, when starting work on Prism.