Pop princess Katy Perry has explained why she decided to choose 'The One That Got Away' as her sixth single from 'Teenage Dream'. 

The 26-year-old hitmaker revealed that the track's theme is universal and "everyone can relate to" it so it was an obvious choice to round off her latest album's releases. 

"I'm so pleased to select 'The One That Got Away' as my sixth single because this song shows a very different side of me that I haven't shown with my past singles on this record. I think that everyone can related to this song. I wrote this song about when you promise someone forever, but you end up not being able to follow through." 

"It's a bittersweet story - hopefully, the listener learns from hearing it and never has to say they had 'The One' get away."

If 'The One That Got Away' reaches No.1 in the U.S Billboard Hot 100 she will become the first artist - male or female - in history to achieve 6 chart-topping singles from the same album. 

Check out her forthcoming single here: