I noticed I've been listening to the same pattern of music for the past few days.

It seems to be going in this sequence:

1. Sunset - XIA
2. 사랑이 싫다구요 - XIA
3. Dear My Family - SMTown
4. Hello Helllo - FT Island
5. Machine - EXO
6. Gangnam Style - PSY
7. I Love You - 2NE1
8. Spy - SJ
9. Rockstar - SJ
10. Boom Boom - SJ
11. Andante - SJ
12. Set Me Free - XIA

there is literally no. pattern.