MasterChefJuniorisanAmericancookingcompetitiontelevisionseriesthatisairingonFox.ItpremieredonFriday,September27,2013.ItisbasedontheformatoftheU.K.seriesJuniorMasterChef.OnMarch5,2014,MasterChefJuniorwasrenewedforathirdseasonbeforeproductiononseasontwobegan.ThesecondseasonpremieredonNovember4,2014.ThethirdseasonpremieredonJanuary6,2015.ThefourthseasonpremieredonNovember6,2015.ThefifthseasonpremieredonFebruary9,2017.