Hosts of The AM Show read the most insulting letters they've received this year

Feedback is widely regarded as a stepping stone to improvement - and The AM Show's audience is not shy to provide their honest thoughts on the show's hosts.

On Friday, they decided to read some of their "favourite" feedback letters on air.

Mark Richardson was first up with an absolute zinger from a viewer named Patricia.

"Women should watch Mark Richardson on television before going to bed and it will put them off doing anything that might increase the population," he read out through laughter.

His tan also came under fire.

"Mark Richardson looks like an oompa loompa with all the fake tan on," he continued reading.

"This one actually hurts because a lot of people think I have fake tan - I don't! It's real; I'm an outdoors action man," he responded.

Viewers had some choice words for Amanda Gillies too.

"When will Amanda either show her natural hair colour or redo her dark roots - her hair looks shocking for a public figure on TV - kind regards, Diane." 

Amanda's manners were also picked apart. 

"Amanda generally has such good manners - but why doesn't she drink from a mug in a civilised way instead of holding it with two hands or not from the handle - it looks sooooooo low class. She lacks basic table manners it appears - from Owen. "

Duncan Garner did not escape unscathed - he found out about a missed romantic opportunity live on air.

"Duncan, I was considering dating you however that $10 haircut is a deal breaker sorry - from Phillipa."  

Not only did he miss out on a girlfriend but he was also fat shamed.

"Humpty Duncan - I see you only read out messages that suit your bias National Party agenda - naughty little fattie."

Despite all the creative insults they receive, all hosts agreed they love the feedback they receive.

"Please keep it coming," said Amanda.

"Think of the nicest and nastiest things you can say about us, send it in now and you might even get a mention," added Duncan.