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The end of the year is here and Billboard has given their opinion by ranking the '20 Best K-Pop Songs of 2015'. There's an eclectic mix of top idol groups, solo singers, collaborations and hip-hop artists. Clearly effort was put in to include both chart-topping and underrated songs of 2015.

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...