We will, we will expose you! Freddie Mercury's alleged love child slams Bohemian Rhapsody biopic as full of lies

She also criticised the film’s handling of Freddie’s AIDS diagnosis, claiming producers got key dates wrong, and took aim at what she called “the Queen machine” for exploiting the We Will Rock You singer after his death at 45 in 1991.

The unnamed woman, who claims to be the late frontman’s daughter, says she only came forward to set the record straight. She revealed she had a close relationship with Freddie and access to 17 private journals dating back to 1976.

Freddie’s ex-partner and life-long friend Mary Austin expressed scepticism last month, saying it would be “astonishing” if Freddie had fathered a child without her knowledge, a comment that left his alleged daughter “devastated".

She said: "I am devastated by Mary Austin's alleged response.

"For 34 years, the truth of Freddie's life has been distorted, twisted and rewritten, but she said nothing – with the exception of her comment about the movie Bohemian Rhapsody, which she called 'artistic licence'.

Mary - who was in a relationship with Freddie in the early '70s, with the pair living together for several years in West Kensington, London - insisted she was unconvinced that the woman was the result of an affair between Freddie and a close friend’s partner in 1976.

She told The Sunday Times newspaper: "Freddie had a glorious openness, and I cannot imagine he would have wanted to, or been able to, keep such a joyful event a secret, either from me or other people closest to him.

"The truth is that I am simply not the guardian of such a secret. I’ve never known of any child, or of any diaries. If Freddie had indeed had a child without me knowing anything about it, that would be astonishing to me."