The 2020 Triple J Hottest 100 was announced on 23 January 2021. It is the 28th countdown of the most popular songs of the year, as chosen by listeners of Australian radio station Triple J. The countdown was announced on the fourth weekend of January.

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". Australian band Lime Cordiale achieved the most entries in the countdown, at five.

Background The Triple J Hottest 100 allows members of the public to vote online for their top ten songs of the year, which are then used to calculate the year's 100 most popular songs. Any song initially released between 1 December 2019 and 30 November 2020 was eligible for 2020's Hottest 100.

Voting opened on 8 December 2020. Several artists and presenters made their votes public, including Billie Eilish, Flume, and Glass Animals. The artists most often voted for by these artists were Tkay Maidza, Tame Impala, Spacey Jane, and The Strokes.

Projections Prior to the countdown, two favourites had emerged. 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. 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. Both songs respectively placed in first and second on the countdown.

Full list Note: Australian artists #SongArtistCountry of origin 1 Heat Waves Glass Animals United Kingdom 2 Booster Seat Spacey Jane Australia 3 The Difference Flume and Toro y Moi Australia/United States 4 Cherub Ball Park Music Australia 5 Lost in Yesterday Tame Impala Australia 6 WAP Cardi B featuring Megan Thee Stallion United States 7 Hyperfine G Flip Australia 8 Sending Me Ur Loving The Jungle Giants Australia 9 I'm Good? Hilltop Hoods Australia 10 Therefore I Am Billie Eilish United States 11 On Our Own Lime Cordiale Australia 12 Get on the Beers Mashd N Kutcher featuring Dan Andrews Australia 13 Rockstar Mallrat Australia 14 Tombstone Ocean Alley Australia 15 Skin Spacey Jane Australia 16 Screw Loose Lime Cordiale Australia 17 Is It True Tame Impala Australia 18 Tangerine Glass Animals United Kingdom 19 You Should Be Sad Halsey United States 20 Addicted to the Sunshine Lime Cordiale Australia 21 Energy Stace Cadet and KLP Australia 22 Complicated Eves Karydas Australia 23 Good News Mac Miller United States 24 Blue World Mac Miller United States 25 Reality Check Please Lime Cordiale Australia 26 No Plans to Make Plans Lime Cordiale Australia 27 Under the Thunder Skegss Australia 28 Straightfaced Spacey Jane Australia 29 Dribble Sycco Australia 30 Bagi-la-m Bargan Birdz featuring Fred Leone Australia 31 Reasons San Cisco Australia 32 Criminals DMA's Australia 33 Breathe Deeper Tame Impala Australia 34 Everybody Rise Amy Shark Australia 35 Running Red Lights The Avalanches featuring Rivers Cuomo and Pink Siifu Australia/United States 36 Forget Me Too Machine Gun Kelly featuring Halsey United States 37 So Done The Kid Laroi Australia 38 Parasite Eve Bring Me the Horizon United Kingdom 39 Righteous Juice Wrld United States 40 Come & Go Juice Wrld and Marshmello United States 41 I Still Dream About You The Smith Street Band Australia 42 Whats Poppin Jack Harlow United States 43 Together Ziggy Alberts Australia 44 You & I G Flip Australia 45 As Long as You Care Ruel Australia 46 Pretty Lady Tash Sultana Australia 47 Animals Architects United Kingdom 48 Ain't It Different Headie One, AJ Tracey and Stormzy United Kingdom 49 Wishing Well Juice Wrld United States 50 Nothing to Love About Love Peking Duk and The Wombats Australia/United Kingdom 51 Your Love (Déjà Vu) Glass Animals United Kingdom 52 The Glow DMA's Australia 53 In Your Eyes The Weeknd Canada 54 Blue (Flume Remix) Eiffel 65 Italy/Australia 55 I Think You're Great Alex the Astronaut Australia 56 On the Line San Cisco Australia 57 Sobercoaster Beddy Rays Australia 58 Fly Away Tones and I Australia 59 Gimme Love Joji Japan 60 Go The Kid Laroi and Juice Wrld Australia/United States 61 Pretty Grim Ruby Fields Australia 62 Run Joji Japan 63 Day & Age Ball Park Music Australia 64 Soak Me in Bleach The Amity Affliction Australia 65 C'mon Amy Shark featuring Travis Barker Australia/United States 66 Fantasising Skegss Australia 67 Boss Bitch Doja Cat United States 68 Lie to Me Vera Blue Australia 69 Second Hope D Australia 70 Low Chet Faker Australia 71 Obey Bring Me the Horizon and Yungblud United Kingdom 72 Way Down Ocean Alley Australia 73 Don't Need You Genesis Owusu Ghana/Australia 74 Scream Drive Faster Laurel United Kingdom 75 Photo ID Remi Wolf United States 76 Baby It's You London Grammar United Kingdom 77 House Arrest Sofi Tukker and Gorgon City United States/United Kingdom 78 Lady Marmalade (Like a Version) G Flip featuring Thandi Phoenix, JessB, Jess Kent, Isabella Manfredi, Rosie Fitzgerald, Alex the Astronaut, Clio Renner, Kate Richards, Bernice Tesara and Carla Dobbie Australia/New Zealand 79 My Future Billie Eilish United States 80 Freaks Fisher Australia 81 Weightless Spacey Jane Australia 82 The Clap The Chats Australia 83 Down for You Cosmo's Midnight and Ruel Australia 84 Chicken Tenders Dominic Fike United States 85 Too Tough Terry Dune Rats Australia 86 Laugh Now Cry Later Drake featuring Lil Durk Canada/United States 87 Three Leaf Clover Teenage Joans Australia 88 Heart Attack Bronson featuring Lau.ra Australia/United States/United Kingdom 89 In Her Eyes The Jungle Giants Australia 90 No Time to Die Billie Eilish United States 91 Charlie (Like a Version) Bugs Australia 92 These Days Thelma Plum Australia 93 Lemonade Internet Money and Gunna featuring Don Toliver and Nav United States/Canada 94 Rain Aitch and AJ Tracey featuring Tay Keith United Kingdom/United States 95 Loose Ends Illy featuring G Flip Australia 96 Germaphobe Hockey Dad Australia 97 Audacity Stormzy featuring Headie One United Kingdom 98 Your Man Joji Japan 99 Itch Hockey Dad Australia 100 Kool Benee New Zealand

#101-200 List On 24 January, 2021, Triple J announced the songs that made the #101-200 positions. https://www.abc.net.au/triplej/hottest100/20/101-200 #SongArtistCountry of origin101R U 4 Me?Middle KidsAustralia102My HighDisclosure, Aminé and SlowthaiUnited Kingdom/United States103Concert For AliensMachine Gun KellyUnited States104DistanceRuelAustralia105Heavy WeatherThe RubensAustralia106TeardropsBring Me the HorizonUnited Kingdom107Every Day is a HolidayDope Lemon featuring Winston SurfshirtAustralia108Send It!Hooligan HefsAustralia109KyotoPhoebe BridgersUnited States110Life Is a Game of ChangingDMA'sAustralia111Bad ChildTones and IAustralia11210%Kaytranada featuring Kali UchisCanada/United States113Pick It Up AgainViolent SohoAustralia114Hot ChickenOcean AlleyAustralia115Nothing For FreePendulumAustralia116Say It OverRuel featuring Cautious ClayAustralia/United States117Lying On the FloorViolent SohoAustralia118After HoursThe WeekndCanada119Save Your TearsThe WeekndCanada120YesteryearCosmo's MidnightAustralia121After All This TimeAlldayAustralia122Cotton CandyYungbludUnited Kingdom123Good EyeHockey DadAustralia124Up In ThereOcean AlleyAustralia125ShookTkay MaidzaAustralia126AnythingAlison Wonderland and Valentino KhanAustralia/United States127Death Bed (Coffee for Your Head)Powfu featuring BeabadoobeeCanada/United Kingdom128Savage RemixMegan Thee Stallion featuring BeyoncéUnited States129Better DaysBaker Boy and Dallas Woods featuring Sampa the GreatAustralia/Zambia130Time Of My LifeThe RubensAustralia131Bad DecisionsThe StrokesUnited States132Moving BlindSonny Fodera and Dom DollaAustralia133MoveBaker BoyAustralia134BlurryStand AtlanticAustralia135SnailBeneeNew Zealand136DreamlandGlass AnimalsUnited Kingdom137HoneyKing Gizzard & the Lizard WizardAustralia138Laying LowChillinitAustralia139ImpossibleNothing But ThievesUnited Kingdom140WindowStill WoozyUnited States141In This StateHockey DadAustralia142Hit DifferentSZA featuring Ty Dolla SignUnited States143DietDenzel Curry and Kenny BeatsUnited States144Good ThingsWafiaAustralia145KingslayerBring Me the Horizon featuring BabymetalUnited Kingdom/Japan146Things I Thought Were MineAlfie TemplemanUnited Kingdom147DaylightJoji and DiploJapan/United States148Love LanguageCrooked ColoursAustralia149Tell Me WhyThe Kid LaroiAustralia150Stupid Is as Stupid DoesDune Rats featuring K.FlayAustralia/United States151Spark Up!Ball Park MusicAustralia152Fired UpDZ DeathraysAustralia153WrongThe Kid Laroi featuring Lil MoseyAustralia/United States154SimmerHayley WilliamsUnited States155FranchiseTravis Scott featuring Young Thug and M.I.A.United States/United Kingdom156Lonely DiamondOcean AlleyAustralia157Rockstar (Black Lives Matter remix)DaBaby featuring Roddy RicchUnited States158Chicago FreestyleDrake featuring GiveonCanada/United States159OTTAllday and Memphis LKAustralia160I Wanna Be HereE^STAustralia161Tyler HerroJack HarlowUnited States162Know Your WorthKhalid and DisclosureUnited States/United Kingdom163That's LifeLime CordialeAustralia164Forever Young (Like a Version)Tones and I featuring Jordan DennisAustralia165Black Fingernails, Red Wine (Like a Version)PolarisAustralia166OKWallowsUnited States16719Slowly SlowlyAustralia168Hey, Ma (Like a Version)The VannsAustralia169The WaterHands Like HousesAustralia170Head Like a SieveBall Park MusicAustralia171HypermaniaPolarisAustralia172Life Is GoodFuture featuring DrakeUnited States/Canada173DizzyAzure RyderAustralia1743amHalseyUnited States175Toosie SlideDrakeCanada176Dine N DashThe ChatsAustralia177JustRun the Jewels featuring Pharrell Williams and Zack de la RochaUnited States178Finally // Beautiful StrangerHalseyUnited States179For the NightPop Smoke featuring Lil Baby and DaBabyUnited States180Let Me DownOliver TreeUnited States181La LuhChoombaAustralia182Tell Em I'm Doing EetswaHooligan HefsAustralia183Fucked Myself UpMerci, MercyAustralia184Is Everybody Going Crazy?Nothing But ThievesUnited Kingdom185It's All So Incredibly LoudGlass AnimalsUnited Kingdom186Ur So F**king CoolTones and IAustralia187CracksSly WithersAustralia188All My FriendsGreat GableAustralia189Ticket To HeavenAlice Ivy and Thelma PlumAustralia190ApricotsMay-aAustralia191Bad ThingsAlison WonderlandAustralia192Dear April (Justice remix)Frank OceanUnited States/France193Night GardenBenee featuring Kenny Beats and Bakar New Zealand/United Kingdom/United States194Wash Us in the BloodKanye West featuring Travis ScottUnited States195WolvesBig Sean featuring Post MaloneUnited States196Race Car BluesSlowly SlowlyAustralia197Cash MachineOliver TreeUnited States198DriverPendulumAustralia199Only Time Makes It HumanKing PrincessUnited States200Posthumous ForgivenessTame ImpalaAustralia

Statistics

Artists with multiple entries #ArtistTracks5Lime Cordiale 11, 16, 20, 25, 264Spacey Jane2, 15, 28, 81G Flip7, 44, 78, 95Juice Wrld39, 40, 49, 603Glass Animals1, 18, 51Tame Impala5, 17, 33Billie Eilish10, 79, 90Joji 59, 62, 982Flume3, 54Ball Park Music4, 63The Jungle Giants8, 89Ocean Alley14, 72Halsey19, 36Mac Miller23, 24Skegss27, 66San Cisco31, 56DMA's32, 52Amy Shark34, 65The Kid Laroi37, 60Bring Me the Horizon 38, 71Ruel 45, 83AJ Tracey48, 94Stormzy48, 97Headie One48, 97Hockey Dad96, 99

Countries represented Country#Australia65United States24United Kingdom14Canada3Japan3Ghana1Italy1New Zealand1

Records With 66 tracks by Australian artists, the 2020 countdown ties 2016's record for the most Australian tracks in a single countdown.