Festeroo started out in 2014 as a backyard fundraiser for the Gilbert's Potoroo, Australia's most endangered mammal, featuring a handful of local musicians, delicious homecooked food and a simple philosophy of inclusiveness and "vibin' out".

Since then, Festeroo has held fundraisers for the FRONTLINE ACTION ON COAL, GOONGERAH ENVIRO CENTRE, Asylum Seeker Resource Centre, Australian Youth Climate Coalition, SEED Indigenous Youth Climate Network, and Direct Action Melbourne.