Do you recognise these Big Brother stars after their huge physical transformations?

We hardly remember the days when some of these BB alums looked like their 'before' photos.

By Maddison Leach
It may be a new fitness routine, plastic surgery or just ageing, but these iconic Big Brother Australia stars have all undergone massive transformations since their time on TV.
Some have shed almost half their body weight, while others have embraced a new look with drastic cosmetic makeovers.
Either way, these before and after photos have to be seen to be believed.
Keep scrolling to see some of the biggest physical transformations in Big Brother history.