Andy Lee's fiancée Rebecca Harding rips into him over a collage of his ex-girlfriends she discovered in his home - as the couple prepare to tie the knot

Andy Lee's fiancée Rebecca Harding has ripped into the comedian and radio star after discovering he held onto photos of his ex-girlfriends - while dating her.

Andy, 45, and Rebecca, who are set to tie the knot this month, recently appeared on the Channel Seven series Celebrity Intervention where she made the admission to hosts Mick Molloy and Glenn Robbins.

'This is a bit traumatic for me. When we first started dating, Andy had a collage at the top of the stairs at his house,' Rebecca began. 

'He knows exactly what I am talking about! This beautiful collage of all of these photos of Andy over the years with all his friends and family... It is lovely until you find out it has photos of his three ex-girlfriends.'

Guest star Kate Langbroek jumped in to ask Rebecca if the collage 'was thrown out with the hard rubbish' once Andy began dating her - and she said it hadn't been.

'That's what you would think. But we lived with it at the top of our shared home for another year,' Rebecca sniped.

A shocked Mick Molloy asked Andy 'what is wrong with you?' and he was quick to defend himself.

'My brother made it for me. There's 140 photos in it and only three have exes... the rest are just good old-fashioned memories,' Andy joked.

'They remind me of the worst decisions of my life.' 

Andy previously dated several high-profile women before he met Rebecca, including Australian supermodel Megan Gale from 2006 to 2010. 

He also briefly dated British singer Lily Allen in 2006, previously joking that she 'ghosted' him after two dates. 

On the program, Andy did not reveal which exes were featured on the collage, or whether they were among them. 

Andy and Rebecca have been together for more than a decade and are getting ready to walk down the aisle together, with Bec celebrating her hen's night in August in Melbourne.

The couple have previously confirmed that they have a wedding date locked in for later this year, along with their guest list, as excitement builds around their long-awaited nuptials.

Rebecca and Andy's relationship began after they first met at a Melbourne café in 2014, where Andy famously left his email address for Rebecca on a napkin. She eventually got in touch and the pair went on their first date the following day.

After briefly splitting early in their relationship, the couple reunited and have remained together ever since.

Andy popped the question after years of dating, and Rebecca previously admitted she was genuinely shocked by the proposal, despite how long they had been together.