The King's Birthday match is an annual Australian rules football match between the Melbourne Football Club and Collingwood Football Club in the Australian Football League (AFL), held at the Melbourne Cricket Ground (MCG) on the King's Birthday public holiday in Victoria (the second Monday in June). Since 2015, the match has been preceded by the Big Freeze, a charitable event raising funds into research for motor neuron disease (MND). The event sees celebrities slide into a pool of ice water as a curtain-raiser to the match.