1. Big Bang's "Loser"

2. Girls' Generation Taeyeon's "I"

3. BTS' "Run"

4. Zion.T and Crush's "Just"

5. Keith Ape's "It G Ma"

6. 4minute's "Crazy"

7. G.Soul's "You"

8. Kim Ye Rim (Lim Kim)'s "Awoo"

9. EXO's "Call Me Baby"

10. miss A's "Only You"

11. Primary ft. AOA's ChoA and Iron's "Don't Be Shy"

12. 15&'s Park Ji Min's "Hopeless Love"

13. Block B Zico ft. Zion.T's "Eureka"

14. Oh My Girl's "Closer"

15. Big Bang's "Bae Bae"

16. GOT7's "If You Do"

17. KARA's Gyuri and From the Airport's "The Little Prince"

18. SHINee's "View"

19. Naul's "Living in the Same Time"

20. B1A4's "Sweet Girl"

And in case you missed it, Billboard also ranked the '10 Best K-Pop Albums of 2015' as well.

1. Wonder Girls' 'Reboot'

2. f(x)'s '4 Walls'

3. Brown Eyed Girls' 'Basic'

4. BTS' 'The Most Beautiful Moment in Life Pt.2'

5. MFBTY's 'Wondaland'

6. IU's 'Chat-Shire'

7. Red Velvet's 'The Red'

8. 2PM's 'No.5'

9. Seventeen's '17 Carat'

10. TVXQ's 'Rise As God'

SEE ALSO: Choi Hyun Wook's agency responds with 'no comment' after the actor accidentally posts a photo showing his nude reflection on SNS

Do you agree with these lists? What are some of the best songs and albums of the year in your opinion?