[1] It is the 28th countdown of the most popular songs of the year, as chosen by listeners of Australian radio station triple j.

English band Glass Animals was voted into first place with their single "Heat Waves", becoming the first British act to top the annual list in 11 years, with the previous case being when Mumford & Sons won the 2009 countdown with "Little Lion Man".

Several artists and presenters made their votes public, including Billie Eilish, Flume, and Glass Animals.

Various music blogs and bookmakers placed "Heat Waves" by English psych-pop band Glass Animals and "Booster Seat" by Australian indie-rock band Spacey Jane as the two songs most likely to take first place.

[3] Glass Animals previously placed 12th in 2014, also ranking in the top 40 in 2016 and 2019; while Spacey Jane debuted at 80th in 2019.