United Kingdom, April 30 -- Carrie Underwood thinks social media is "not the real world".

The 42-year-old singer has developed an effective strategy to deal with social media trolls in recent years, with Carrie revealing that she's learned to "post and ghost" on platforms like Instagram.

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 abou...