Women and men of all sizes are sharing photos with the hashtag #WeAreTheThey in a collective stand against Jamelia's "body shaming" comments.
The hashtag was started by a blogger named Debz, in response to the Loose Women panelist's controversial views about people "below or above a certain weight".
"I don't believe stores should stock clothes below or above a certain weight," Jamelia said on Tuesday 21 April.
"They should be made to feel uncomfortable when they go in and can't find a size."
Debz tells HuffPost UK Lifestyle the issue has now become "bigger than Jamelia".
"The hashtag going viral was amazing," Debz says. "I was speechless. It made me feel proud that women of all shapes and sizes were feeling empowered enough to speak out.
"So many people have shared their stories online which made me realise the conversation is now bigger than Jamelia.
"This isn't an issue just about plus size women. It's petite women and 'acceptable' size women and even men who are affected and it was heartwarming to see so many people coming together."
HuffPost UK blogger and plus-size model Georgia Grogan has got involved with the campaign, sharing the photo below:
#Jamelia thinks that I shouldn't be able to have nice clothes? I think sod off! Size 20 and happy. #WeAreTheThey pic.twitter.com/c5MeiYJRI1
— She Might Be Loved (@GeorginaGrogan_) April 22, 2015
Grogan says that how women choose to look is their decision alone and that fat-shaming, is unacceptable.
"Having this choice in clothing and allowing women to build their confidence by finding themselves and their style can then mean that women are confident enough to make their own decisions on their body image and only change it if they truly want to."
Jamelia stood by her statement during an appearance on This Morning on Wednesday 22 April.
"Knowing I offended people really upset me," she said. "But I do stand by what I said - I am a real women with real opinions... I get paid to voice my opinion. Occasionally you offend people."
She added that she had ben talking about "extremes", which she explained meant people "above a size 20 and below a size 6."
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Debz was so outraged by Jamelia's remarks she decided to write an open letter to the former popstar on her blog:
"If you think that the fact someone wears clothing a couple of sizes 'too big' makes them the right kind of victim to shame and bully then your position as a TV presenter makes me sad.
"You speak to a nation of people every lunch time and you have the power to do such good. Today you choose to tell people that fat people should be made to feel uncomfortable when they are clothes shopping - what type of person does that?"
Debz says she was amazed by the response her open letter received and that inspired her to start the #WeAreTheThey Campaign.
"The hashtag #WeAreThe They was created after my original open letter to Jamelia got such a good response," Debz tells HuffPost UK Lifestyle.
"I realised she had touched a nerve with people who usually wouldn't speak out about this type of bullying.
"I wanted to show Jamelia that although it is easy to say 'they should be made to feel uncomfortable' she is referring to real people and having an effect on real lives."
When you talk about 'they' should shop in specialist shops, you are talking about ME! #WeAreTheThey pic.twitter.com/UWHz9zHuwJ
— Debz (@Debzjs) April 22, 2015
"Even today people are using the hashtag to show off their photos and I hope they continue to do so," adds Debz.
"It goes to show that together we are strong and something like this was definitely needed. I'll continue to strive for body positivity on my blog and now it seems others will too!"
Scroll down to see some of the photos that have been shared already...
#WeAreTheThey & we won't be made to feel ashamed of our bodies cc @Debzjs pic.twitter.com/a3wcE9rO4t
— Danielle (@VanierDanielle) April 22, 2015
When folks say fat=unhealthy, they never mention our mental health & how body shaming makes it worse #WeAreTheThey pic.twitter.com/8AIvUWq31W
— Apple Writer (@applewriter) April 22, 2015
I am a big man, struggle to find clothes as it is, but I WILL NOT BE SHAMED! #WeAreTheThey @Jamelia pic.twitter.com/HtF1fEGbRW
— Nick Gregory (@Nickipedia101) April 22, 2015
I'm size 6 & I deserve clothes! Every size is deserving! Oh, & more petit sizes please retailers! #WeAreTheThey pic.twitter.com/Y09uI6mR5F
— Kelsey Shepherd (@KelseyShepherd_) April 22, 2015
We feel good, look good and have a right to hot fashion just like everyone else! #WeAreTheThey #psbloggers pic.twitter.com/o4YVL7Ulda
— Mayah (@MayahThomas) April 22, 2015
Maybe you want me to wear a slanket, Jamelia? How do I look? Oh, STILL AWESOME! #wearethethey pic.twitter.com/PsaCjHxbtz
— Bettie (@bettieriot) April 22, 2015
Feelin good thru fashion helped me overcome years of bullyin. Bullies like u dont scare me now @Jamelia #WeAreTheThey pic.twitter.com/SJ3FXNDCrN
— Naomi Griffiths (@Naomi_Griffiths) April 22, 2015
#WeAreTheThey Proud of my weedy size 4 body, NOONE has the right to shame bodies for their size/shape/colour/ability pic.twitter.com/nYWQHX0IuT
— Katie Pennick (@KatiePennick) April 23, 2015
Just because I'm a size 24 doesn't mean I don't deserve the basic human right of clothing my body. #WeAreTheThey pic.twitter.com/4RTmHslIJq
— Hannah (@Fabfatfashion) April 22, 2015
#WeAreTheThey - ty @Debzjs for starting this hashtag in response to @Jamelia's comments pic.twitter.com/27bZml9re2
— Charlotte (@AppleCharlotte) April 22, 2015