Pop superstar Katy Perry has opened up about one of her brand new songs entitled 'Bad Photographs' and revealed that she was inspired by romance and how people sometimes don't notice when things go wrong.

During an interview with U.S. Vogue, the 'Teenage Dream' beauty confessed that she wanted it to reflect how easy it is for things to get bad with relationships and how simple it is to overlook it for the sake of wanting things to be perfect:

"I titled it 'Bad Photographs' because the idea is that when people are in a relationship they only take photographs when they are happy, and sometimes when it ends you realize maybe it would be important to take photographs when it's not happy."

"So I have this idea, 'Looking back we should have taken photographs / of all the unhappiness / because now my mind's playing tricks on me / I forget we are not meant to be."

She added that she also suffers from episodes of self-doubt when she hasn't released new material in a while: "When I am in between records, sometimes I doubt myself. I'll be like, 'Did I just get lucky, or did I mass-manipulate the world into thinking that seven songs were worth a number-one position?'"

Watch Perry reveal her current beauty routine here: