However, Byron Bay's famous new resident Zac Efron and girlfriend Vanessa Valladares were missing in action at Friday's shindig.
Photos from the party shared on social media revealed free-flowing alcohol, DJ Blondie on the decks, and a 2020 sign going up in flames as the clock struck midnight.
The famed party continued to go ahead despite warnings to Byron Bay locals and holidaymakers that Covid-19 protocols set out by the NSW government must be observed.
Chris Hemsworth/Instagram
Chris Hemsworth and his brother Luke.
In Sydney, it was a far tamer affair with many venues cancelling events and homes restricted to no more than five guests.