Carrie Underwood thinks social media is "not the real world"

Discussing her social media motto, Carrie told E! News: "I stole that from Joe Rogan. It's really important when you think about social media that you realise it's not the real world.

"It took me a long time to realise that, and a long time to be secure enough in myself to be like, 'Do I care if somebody doesn't like my hair today, or this thing I sang or how I sang it? I don't.'"

Carrie insists that she has bigger, more important things to worry about in her life.

The chart-topping star - who has sons Isaiah, ten, and Jacob, six, with husband Mike Fisher - said: "I'm 42 years old. I've got two kids I'm trying to raise to be good humans. I'm just out there doing the best I can, so if I want to post something, I'm just going to do it and leave it there."

Carrie rose to prominence after winning the fourth season of 'American Idol' in 2005. And the singer has now confessed to being "so naive" during her early years in the music business.

The 'Inside Your Heaven' hitmaker - who is now part of the 'American Idol' judging panel - said: "Being on the show when I was 22 years old, every single week was like, 'Do or die, now or never'. I felt grateful that I even got the opportunity to get to be on the show, and I still feel like that now. I do get nervous for the hopefuls.

"I do want everybody to win, but alas."

Carrie previously acknowledged that 'American Idol' has changed the course of her life.

The singer made the confession as she looked forward to returning to the show as a member of the judging panel.

In an announcement video, Carrie said: "I went from nobody knowing my name to tens of million of people watching the show.

"I'm proud of everything that I was able to accomplish on the show and I'm so proud of everything I've accomplished since."