The Fifth Harmony beauties were mentored by Demi Lovato during their time on 'X Factor USA' and member Camila Cabello told Blinkbox that she gave them all some unforgettable advice. 

Speaking about what she learned from Lovato while they were on the show and on tour with the superstar, Cabello admitted that prioritising her health and happiness is something she does now:

"I used to idolise Demi Lovato; I had all her albums and I was just such a huge fan – when I found out she was going to be a judge on the 'X Factor', it made me want to do the show even more. When I first met her, I literally cried and told her that I loved her."

"I think going on tour with her was this really surreal experience. It was just a great thing to see she was just as genuine as she seems. What you see is what you get with her. She always checks up on us, and made sure we were having a good time. She always told us that our happiness is important; that our happiness and our health comes before everything else."

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Watch a new interview with the 5H girls below: