The Instiz chart combines the overwhelming variety of charts that South Korea uses to rank music sales, and it's what fans use to determine whether their favorite artist has achieved an "All-Kill".

Check out the chart rankings for the 2nd, 3rd, and 4th week of January below!

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Instiz Chart Singles Ranking (2nd week of January)

1. T-ara - "Lovey Dovey" - 27,749 Points

2. Dynamic Duo - "Without You" - 17,747 Points

3. Trouble Maker - "Trouble Maker" - 16,700 Points

4. IU - "You & I" - 14,356 Points

5. Davichi, T-ara - "We Were In Love" - 14,335 Points

6. 10cm - "Sorrow" - 11,621 Points

7. Lee Hyun - "Because It's You" - 5,462 Points

8. Zia - "Because I'm Upset" - 5,232 Points

9. BMK - "Clown" - 4,458 Points

10. MBLAQ - "Scribble" - 4,215 Points

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Instiz Chart Singles Ranking (3rd week of January)

1. T-ara - "Lovey Dovey" - 33,567 Points

2. Jung Junha - "Story of the Tall Bachelor" - 26,734 Points

3. 10cm - "Sorrow" - 13,208 Points

4. Dynamic Duo - "Without You" - 12,577 Points

5. Wonder Girls - "The DJ Is Mine" - 9,490 Points

6. Trouble Maker - "Trouble Maker" - 8,423 Points

7. Yoo Jae Suk - "Heat Stressed Sea Gull" - 8,206 Points

8. IU - "You & I" - 6,212 Points

9. Davichi, T-ara - "We Were In Love" - 5,584 Points

10. Sunny Hill - "The Grasshopper Song" - 5,171 Points

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Instiz Chart Singles Ranking (4th week of January)

1. T-ara - "Lovey Dovey" - 33,785 Points

2. Lyn - "Over Time" - 20,925 Points

3. 10cm - "Sorrow" - 14,125 Points

4. Dynamic Duo - "Without You" - 13,937 Points

5. Hyorin - "I'll Love You" - 12,198 Points

6. Yoo Jae Suk - "Story of the Tall Bachelor" - 7,920 Points

7. Trouble Maker - "Trouble Maker" - 7,492 Points

8. IU - "You & I" - 6,637 Points

9. Sunny Hill - "The Grasshopper Song" - 6,170 Points

10. Wonder Girls - "The DJ Is Mine" - 5,604 Points

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Source: Instiz iCHART