In its 25th year, the annual event which takes place every February, will see over 2000 students take in the spectacle.
Since it launched in 1992 the event has raised over £460,000 for numerous charitable causes.
Silas's parents, Ben and Sarah Pullen, said, “Treatment of brain tumours has barely changed. When our son Silas was diagnosed, he was put on drugs that were 40 years old – they didn't work then and they don't work now.
"Right now, there is little else to offer these children – but the pioneering work undertaken by The Brain Tumour Charity gives families like ours who are facing the disease more hope."
All the funds raised from the 2017 launch party – Starfields – and fashion show will go towards a project at Heriot-Watt University in Edinburgh where scientists are printing 3D brain tumours for the first time as part of a multi-million pound research investment by The Brain Tumour Charity.
Head of Charity Andrew Kalinin said, "This year we have experienced an unprecedented amount of interest from local, regional and national charities - 72 charities have applied to become our charitable partner.
“The Brain Tumour Charity has demonstrated and conveyed real passion for their work. Their revolutionary research in 3D printing of brain tumours holds much promise and is aimed at finding safer and more effective treatments.
“The St Andrews Charity Fashion Show was truly impressed by the application and by the shared creativity of such an incredible and unique charity. We are beyond thrilled about the prospect of working together with The Brain Tumour Charity.
“We hope that together we can raise funds to positively alter the lives of many people affected by such a serious disease."
Sarah Lindsell, The Brain Tumour Charity's CEO said, “We are delighted to be chosen as charity partner for the hugely successful St Andrews University Fashion Show (FS) in its 25th anniversary year.
“Their support for us and for our research project in Edinburgh will make a real difference as we continue our quest to defeat brain tumours, which kill more children and adults under 40 in the UK than any other type of cancer.
“We are immensely grateful to The St Andrews Fashion Show (FS) for their commitment to helping us change these shocking statistics."