MEDIABASE (DUCKHEAD/popradiotop20.com) TOP SINGLES FOR 2015*

https://www.youtube.com/watch?v=OPf0YbXqDm0&t=8s&ab_channel=MarkRonsonVEVO

No. Song-Artist-Peak Month  
  1 UPTOWN FUNK!-MARK RONSON & BRUNO MARS-FEBRUARY 
  2 SHUT UP AND DANCE-WALK THE MOON-July
  3 CAN'T FEEL MY FACE-THE WEEKND-August 
  4 WANT TO WANT ME-JASON DERULO-June
  5 LEAN ON-MAJOR LAZER,DJ SNAKE & MO-August
  6 STITCHES-SHAWN MENDES-December
  7 SUGAR-MAROON 5-April
  8 BAD BLOOD-Taylor Swift-July
  9 LOVE ME LIKE YOU DO-Ellie Goulding-May
 10 THINKING OUT LOUD-Ed Sheeran-March
 11 Good For You-Selena Gomez-October
 12 Style-Taylor Swift-March
 13 See You Again-Wiz Khalifa & Charlie Puth-June
 14 Cheerleader-Omi-August
 15 Jealous-Nick Jonas-February
 16 Hey Mama-David Guetta,Nicki Minaj & Afrojack-June
 17 Wildest Dreams-Taylor Swift-November
 18 The Hills-The Weeknd-October
 19 Worth It-Fifth Harmony & Kid Ink-June
 20 Locked Away-R. City & Adam Levine-October
 21 What Do You Mean?-Justin Bieber-October
 22 Take Me To Church-Hozier-February
 23 Hello-Adele-December
 24 Somebody-Natalie La Rose & Jeremih-May
 25 Earned It-The Weeknd-May
 26 Where Are U Now-Skrillex,Diplo & Justin Bieber-September
 27 Talking Body-Tove Lo-June
 28 I'm Not The Only One-Sam Smith-January
 29 Photograph-Ed Sheeran-October
 30 Time Of Our Lives-Pitbull & Ne-Yo-March  
 31 On My Mind-Ellie Goulding-December  
 32 Cool For The Summer-Demi Lovato-October
 33 Love Me Harder-Ariana Grande & The Weeknd-January
 34 Hotline Bling-Drake-December
 35 Lips Are Movin'-Meghan Trainor-January
 36 Chains-Nick Jonas-May
 37 One Last Time-Ariana Grande-May   
 38 Drag Me Down-One Direction-November
 39 Honey,I'm Good-Andy Grammer-July
 40 FourFiveSeconds-Rihanna,Kanye West & Paul McCartney-April
 41 Uma Thurman-Fall Out Boy-September
 42 You Know You Like It-DJ Snake & AlunaGeorge-June 
 43 Prayer In C-Lilly Wood & Robin Schulz-March   
 44 Fight Song-Rachel Platten-August
 45 Ex's And Oh's-Elle King-December
 46 G.D.F.R.-Flo Rida & Sage The Gemini-May 
 47 The Heart Wants What It Wants-Selena Gomez-January
 48 Outside-Calvin Harris & Ellie Goulding-April
 49 Renegades-X Ambassadors-November
 50 I Want You To Know-Zedd & Selena Gomez-April
 51 Downtown-Macklemore & Ryan Lewis-November
 52 This Summer's Gonna Hurt Like A Motherfucker-Maroon 5-July
 53 Ghost-Ella Henderson-March
 54 Heroes-Alesso & Tove Lo-February
 55 Centuries-Fall Out Boy-March 
 56 Night Changes-One Direction-April
 57 The Hanging Tree-James Newton Howard & Jen-January
 58 Elastic Heart-Sia,The Weeknd & Diplo-July 
 59 Love Myself-Hailee Steinfeld-October
 60 Focus-Ariana Grande-December
 61 The Night Is Still Young-Nicki Minaj-July
 62 Beautiful Now-Zedd & Jon Bellion-September
 63 Levels-Nick Jonas-October
 64 How Deep Is Your Love-Calvin Harris & Disciples-November
 65 She's Kinda Hot-5 Seconds Of Summer-September  
 66 Marvin Gaye-Meghan Trainor & Charlie Puth-September
 67 Dear Future Husband-Meghan Trainor-June
 68 I Don't Mind-Usher & Juicy J-March
 69 Stuck On a Feeling-Prince Royce & Snoop Dogg-February
 70 Nobody Love-Tori Kelly-May
 71 Bright-Echosmith-June
 72 Should've Been Us-Tori Kelly-August
 73 Lay It All On Me-Ed Sheeran & Rudimental-November
 74 Fun-Pitbull & Chris Brown-May
 75A I Lived-OneRepublic-January
 75B Lay Me Down-Sam Smith-March 
 77 She Knows-Ne-Yo & Juicy J-March
 78 Riptide-Vance Joy-January 
 79 Cheyenne-Jason Derulo-September
*  Here is how Duckhead calculated this chart from Radio and Record charts.

Points
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.