She became a Love Island favourite thanks to her fiery personality last year, and was crowned runner-up with her now-ex Eden Dally.
And Erin Barnett has now shared juicy behind-the-scenes details of the Channel Nine show, explaining exactly what it was like to spend seven weeks in the Spanish villa.
From showering naked to having days off to watch films, the 23-year-old Melbourne Beauty didn't hold back during a candid Instagram Q&A chat.
From showering naked to the unlikely romance and who is an 'absolute dog': Love Island's Erin Barnett revealed the show's behind-the-scenes secrets in a candid Instagram Q&A
Erin insisted that none of the show was scripted, but did admit that producers would sometimes initiate them to have 'chats' with each other.
'The only thing we were really ever told to do was to grab someone and sit down in a certain spot and have a chat,' she said.
'Because come on, if we weren’t told to do this you would have just watched us tan by the pool for seven weeks.'
She added that the cast were always woken up early, but she never knew when for certain because they 'weren't allowed to know the time'.
Baring all: In terms of the facilities, Barnett revealed they all had to share just one shower and two toilets - and all of them showered naked despite there being cameras in the stall
The blonde Beauty also revealed that they weren't allowed to drink every night, and could only watch one or two films on their days off.
'Yes we were allowed to have two glasses of wine whenever we drank. But we weren’t allowed to drink every night. Just on birthdays and special occasions,' she said.
'On our off days we got to watch 1-2 movies and eat lollies. It was the best. And yes, even on our off days we were being filmed.'
Never again: She also ruled