Your favourite radio countdown, Take 40 Australia turns 25 years old this year - meaning we are the longest running radio countdown in the country! To celebrate, we put our chart monkeys to work to compile the ultimate countdown - the biggest number one songs in Take 40 history! Watch the countdown below and reminisce! Plus step back in time with former Take 40 host Barry Bissell and current host Andrew G as they take you through some of Take 40's most memorable moments!