Comedian Celeste Barber has opened up about her traumatic high school years.

The 43-year-old mother-of-two said that can't 'shake' the experience of being bullied by 'mean girls' as a teen during an appearance on the ABCs 7.30 Report on Wednesday.

Asked by host Sarah Ferguson whether she would front up to a school reunion, Celeste confessed sadly that the last time there was a get together she was left off the guest list.

'I was invited to one and I went to that,' Celeste explained, 'And I was a ball of angst the entire time.

'There has been one since then and I wasn't invited to it.'

Celeste teased that her old school mates may not have liked what she shared in her 2018 bestselling memoir Challenged Accepted, which detailed the bullying she suffered as a teen.

From A-list scandals and red carpet mishaps to exclusive pictures and viral moments, subscribe to the DailyMail’s new showbiz newsletter to stay in the loop. 

During the segment she joked that she really wanted to go to her reunion because it was after her friendship with US designer Tom Ford had been making headlines.

'It [was] really annoying because that was the year I made out with Tom Ford, so I was like "this is the year...I can fly in on a jet with Tom Ford."'

Elsewhere in the segment, Celeste had opened up about how her years of being bullied at school is still 'with her' as an adult.

‘I think I would I would like to say it’s not going to stay there forever. But it’s still there now,' she said.

'Nothing hits like remembering what it was like to have people go after you for years for no reason.'

Still, Celeste managed to find humour during the chat, adding that even she did get an invite for a reunion she would hit the pause button,

'I did see one of the girls [from school] at Bunnings the other day and I screamed and ran the other way' she said.

The mother-of-two, who rose to stardom in the last few years with a series of hilarious viral videos mocking celebrities and influencers peddling fashion and wellness trends, is heading into a national tour in August and September.

As well as playing gigs in Sydney, and Melbourne, Celeste's Back Up Dancer Tour will be doing shows in regional centres like Ballarat, Bega, Tamworth and Cairns.

Celeste will also take in Rockhampton, Toowoomba, Wollongong, Townsville, and Western Sydney before finishing the tour in Caloundra on September 7.

It comes after Celeste revealed the secret behind her glowing complexion as she celebrated her 43rd birthday earlier this month.

The Aussie funnywoman, took to social media on Friday to share a candid clip with her followers – and to plug the latest product from her skincare line, Booie Beauty.

'I turned 43 on Tuesday and I spent a fair amount of time looking at my face in the mirror,' Celeste wrote in her caption.

'A) because I was testing new products and B) because I'm really grateful for my face and for the lines on my face and I wanted to make sure I kept reminding myself that I’m excellent just as I am.'

Celeste, who launched Booie Beauty just 10 months ago, said she's proud of the community that’s quickly formed around her brand, which champions ageing with confidence and humour.

Help is available. Free and confidential counselling is available at Kids Helpline 1800 55 1800. Lifeline 13 11 14. Beyond Blue 1300 22 4636