At the end of every year for the past two decades, I've taken a few days to consider the top ten songs of that year that had just passed. Here are the top ten songs of 2015 to 2019:
The Top 10 Songs of 2015:
1. Taeyeon ft. Verbal Jint "I" 
2. Alyson Stoner & Max Schneider "Sweater Weather" 
3. Crywolf ft. Charity Lane "Neverland"
4. Hebe (田馥甄) "My Love" 
5. Podolskaya (Подольская) & Presnyakov (Пресняков) "KISSlorod (Kissлород)" 
6. Dabin ft. Daniela Andrade "Hold" 
7. Nyusha (Нюша) "Naedine (Наедине)"
8. Xu Yatong (许亚童) "Mimeng (迷梦)" 
9. Taylor Swift "This Love"
10. Kimberley Chen (陳芳語) "Never Change" 
The Top 10 Songs of 2016:
1. Jake Owen "American Country Love Song"
2. Bolbbalgan Sachungi (볼빨간 사춘기) "Ssaunnal (싸운날)"
3. Alan Walker ft. Iselin Solheim "Faded" 
4. Quest Pistols Show "Nepohozhie (Непохожие)" 
5. Dizzy Dizzo (蔡詩芸) "Fenhong taiyang hua (粉紅太陽花)"
6. Billy Talent "Horses and Chariots"
7. Jill Vidal (衛詩) ft. San E (산이) "I Can See" 
8. Sugar Donut (슈가도넛) "Imagine, Close Your Eyes"
9. Nanook "Qiimassutissarput aajuna" 
10. Steak Number Eight "Your Soul Deserves To Die Twice" 
The Top 10 Songs of 2017:
1. G.E.M. "Yekong zhong zui liang de xing (夜空中最亮的星)"
2. Magic Giant "Set on Fire"
3. Sabrina Carpenter "Why"
4. G.U.T.S. (兄弟本色) "Yo lue (摇落)"
5. Shi Shi (孫盛希) "Shi ta bupei (是他不配)"
6. Allie X ft. Valley Girl "Need You"
7. Sufjan Stevens "Chicago"
8. Miley Cyrus "Malibu"
9. Hilary Duff "Brave Heart"
10. Judah & The Lion "Take It All Back 2.0"
The Top Songs of 2018:
1. The Devil Wears Prada "To The Key of Evergreen"
2. Tigercub "Control" 
3. Nada Surf "Popular"
4. Twice (트와이스) "Likey"
5. Rüfüs Du Sol "No Place"
6. Rucheyok (Ручеёк) "Obrazy (Образы)"
7. Mamamoo (마마무) "Byeori bitnaneun bam (별이 빛나는 밤)"
8. My (Мы) "Ostrov (Остров)"
9. 8(913) "V etom ves smysl (В этом весь смысл)"
10. IC3PEAK "Skazka (Сказки)"