The 22-year-old appeared in Channel 7's Beauty and the Geek in 2013 before it was axed a year later.
The then 18-year-old made it to the finals of the reality show, but ended up in second place.
Erin previously revealed to WHO that she hopes to find love through Love Island.
“I’m hoping that because I’m trapped in an amazing villa with people, [then] I have to get to know guys longer,” she said.
“Because normally I do a one date thing or a second date but I would not go on a third date because then that means that I’m just going to start to like you, so I bail.”