MEDIABASE (DUCKHEAD/popradiotop20.com) TOP SINGLES FOR 2021*

https://www.youtube.com/watch?v=kTJczUoc26U

No. Song-Artist-Peak Month
  1 STAY-THE KID LAROI & JUSTIN BIEBER-AUGUST
  2 LEVITATING-DUA LIPA & DaBABY-May
  3 GOOD 4 U-OLIVIA RODRIGO-May
  4 POSITIONS-ARIANA GRANDE-February
  5 BAD HABITS-ED SHEERAN-August
  6 SAVE YOUR TEARS-THE WEEKND & ARIANA GRANDE-May 
  7 INDUSTRY BABY-LIL NAS X & JACK HARLOW-August
  8 KISS ME MORE-Doja Cat & SZA-July
  9 INDUSTRY BABY-Lil Nas X & Jack Harlow-August
 10 34+35-ARIANA GRANDE-January
 11 Easy On Me-Adele-November 
 12 Therefore I Am-Billie Ellish-March 
 13 Deja Vu-Olivia Rodrigo-April
 14 Peaches-Justin Bieber & Giveon-March
 15 Drivers License-Olivia Rodrigo-January
 16 You Right-Doja Cat & The Weeknd-July 
 17 Holy-Justin Bieber & Chance the Rapper
 18 You Broke Me First-Tate Mcrae-March
 19 Go Crazy-Chris Brown & Young Thug-March
 20 Without You-The Kid LAROI and Miley Cyrus-May
 21 My Ex's Best Friend-Machine Gun Kelly-February 
 22 P.O.V.-Ariana Grande-May
 23 Beggin'-Maneskin-November
 24 Put Your Records On-Ritt Momney-February
 25 Leave The Door Open-Silk Sonic,Bruno Mars,& Anderson .Paak-April
 26 Lonely-Justin Bieber & Benny Blanco-January
 27 Bang!-AJR-January
 28 Take My Breath-The Weeknd-August
 29 Leave Before You Love Me-Marshmello & Jonas Brothers-September
 30 What You Know Bout Love-Pop Smoke-March
 31 Best Friend-Saweetie & Doja Cat-April 
 32 Butter-BTS-June
 33 Cold Heart-Elton John & Dua Lipa-November
 34 Astronaut In The Ocean-Masked Wolf-April
 35 Beautiful Mistakes-Maroon 5 & Megan Thee Stallion-June
 36 Traitor-Olivia Rodrigo-June
 37 We're Good-Dua Lipa-May
 38 Arcade-Duncan Laurence-September
 39 You-Regard,Troye Sivan & Tate McRae-June
 40 Love Again-Dua Lipa-August
 41 Telepatia-Kali Uchis-May
 42 Diamonds-Sam Smith-February
 43 Anyone-Justin Bieber-January
 44 Golden-Harry Styles-March
 45 Heartbreak Anniversary-Giveon-June
 46 A-O-K-Tai Verdes-October
 47 My Head & My Heart-Ava Max-March
 48 Goosebumps (Remix)-Travis Scott & HVME-May
 49 Who's In Your Head-Jonas Brothers-November
 50 Take You Dancing-Jason Derulo-January
 51 Fancy Like-Walker Hayes-October
 52 Lil Bit-Nelly & Florida Georgia Line-July  
 53 Don't Go Yet-Camila Cabello-July
 54 Rumors-Cardi B & Lizzo-August
 55 Afterglow-Ed Sheeran-February
 56A Memory-Kane Brown-August
 56B Willow-Taylor Swift-January 
 58 Summer Of Love-Shawn Mendes & Tainy-September
 59 My Universe-Coldplay & BTS-October
 60 Skate-Silk Sonic-Bruno Mars & Anderson .Paak-August
*  Here is how Duckhead calculated this chart from Radio and Record charts.

Points for the yearly charts are calculated using inverse points from the weekly charts.
Each week, the # 1 song gets 20 points, the # 2 song gets 19 points, # 3 gets 18, and so on.
The # 20 song gets 1 point.
Each song's points are added up for each week to reach the total.
A song's entire chart run will be used for the yearly chart.
Songs appear on the yearly chart corresponding to the year they peak on the weekly charts.
Tie-Breakers
For songs that tie in points on the yearly charts, the following tie-breakers are used:
1. Most weeks at # 1
2. Most weeks at # 2
3. Most weeks at # 3
4. Most weeks at # 4
5. Etc.
If songs remain tied after all 20 tie-breakers, then they will be listed as tied on the yearly chart.
Tied songs appear in alphabetical order, and are marked by letters, for example: 99A and 99B.