The ARIA Singles Chart ranks the best-performing singles in Australia. Its data, published by the Australian Recording Industry Association, is based collectively on the weekly physical and digital sales and streams of singles. In 2021, 13 songs reached number one; the first, "Mood" by 24kGoldn featuring Iann Dior, returned to the top on the first chart of the year after spending nine weeks atop the chart in 2020. Eight artists, Olivia Rodrigo, Glass Animals, Daniel Caesar, Giveon, the Kid Laroi, Russ Millions, Tion Wayne and Dua Lipa reached the top for the first time.
Olivia Rodrigo and the Kid Laroi each achieved two number ones on the chart in 2021, while Justin Bieber spent the most weeks at number one of the year, with "Peaches" and the Kid Laroi duet "Stay" spending a combined total of 16 weeks atop the chart.
Chart history +KeyIndicates best-performing single of 2021 Issue date Song Artist(s) 4 January "Mood" 24kGoldn featuring Iann Dior 11 January 18 January "Drivers License" Olivia Rodrigo 25 January 1 February 8 February 15 February 22 February 1 March "Heat Waves" Glass Animals 8 March 15 March 22 March 29 March 5 April 12 April "Peaches" Justin Bieber featuring Daniel Caesar and Giveon 19 April 26 April "Montero (Call Me by Your Name)" Lil Nas X 3 May 10 May "Without You" The Kid Laroi 17 May "Body" Russ Millions and Tion Wayne 24 May 31 May "Good 4 U" Olivia Rodrigo 7 June 14 June 21 June 28 June 5 July "Bad Habits" Ed Sheeran 12 July 19 July "Stay" The Kid Laroi and Justin Bieber 26 July 2 August 9 August 16 August 23 August 30 August 6 September 13 September 20 September 27 September 4 October 11 October 18 October 25 October "Easy on Me" Adele 1 November 8 November "Cold Heart (Pnau remix)" Elton John and Dua Lipa 15 November 22 November "All Too Well (Taylor's Version)" Taylor Swift 29 November "Easy on Me" Adele 6 December 13 December "Cold Heart (Pnau remix)" Elton John and Dua Lipa 20 December 27 December
Number-one artists +List of number-one artists, with total weeks spent at number one shown Position Artist Weeks at No. 1 1 Justin Bieber 16 2 The Kid Laroi 15 3 Olivia Rodrigo 11 4 Glass Animals 6 5 Dua Lipa 5 5 Elton John 5 6 Adele 4 7 24kGoldn 2 7 Iann Dior 2 7 Daniel Caesar 2 7 Giveon 2 7 Lil Nas X 2 7 Russ Millions 2 7 Tion Wayne 2 7 Ed Sheeran 2 8 Taylor Swift 1
See also 2021 in music List of number-one albums of 2021 (Australia)
References