[1] It was the 30th annual countdown of the most popular songs of the year, as voted for by listeners of Australian radio station triple j.

[3] The 2021 triple j Hottest 100 culminated with the Wiggles' Like a Version cover of Tame Impala's "Elephant" reaching number one.

[7] On the day of the countdown, Sportsbet had English DJs Eliza Rose and Interplanetary Criminal's "B.O.T.A.

[11] Indie rock band Spacey Jane topped the poll for the second time, following their win with debut album Sunlight in 2020.

[12] Weirder & Weirder at second place and The Car at ninth mark both Ball Park Music's and Arctic Monkeys' seventh appearances each in the annual poll, with every prior studio album from both bands making an appearance in past polls.