Katie Hopkins trolls Kelly Clarkson on her post baby body.

It is next level nasty.

The outspoken Katie Hopkins is at it again, taking to Twitter to attack one of America’s sweethearts – Kelly Clarkson about her weight gain after giving birth to her daughter.

The outspoken 40-year-old from Britain posted a series of Tweets on Friday night while watching a performance from the 32-year-old singer on The Graham Norton Show.

She started by tweeting this:

Many people tried to stand up for the singer, and first time mum, reminding Katie that Kelly had only recently given birth to her first baby.

But the comments just added fuel to Katie's fire as she took to Twitter to explain that the birth was so long a go it was no longer an excuse.

And to finish it off with a final blow, this snarky tweet.

The Tweets weren't necessary, in fact they were just down right harsh and inappropriate.

Although there was a lot of support from Kelly's fans, Katie didn't want a bar of it. She didn't care what others thought and strongly believed in what she was voicing.

She posted, "Let's remember boys and girls and haggard old bags, if you don't like what I say, you don't have to read it. My voice comes with choice...No one needs to agree with my views. Accepting we all think differently is the joy of life. Unless you are fat. Then clearly you're wrong."

Katie is well known for fat-shaming anyone who comes on her 'fat' radar. She has no barriers and doesn't care what anyone else thinks of her views.

This time Kelly Clarkson was just unlucky to run in to her line of fire.

What do you think of Katie Hopkins and her remarks?

CLICK THROUGH the gallery to see Kelly Clarkson and her lovely family...

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"Katie Hopkins 'fat' story."

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