| 1 | A | B | C | D | E |
| --- | --- | --- | --- | --- | --- |
| 2 | Choi Soo-young - Singles |  |  |  |  |
| 3 | Year | Album | Song | Duration | Artist |
| 4 | 2002 | Start | "Start" | 03:23 | Duet with Malina Takahashi as Route θ |
| 5 | 2002 | Start | "Kimi Ni Ae Ta Kara..." | 04:40 | Duet with Malina Takahashi as Route θ |
| 6 | 2002 | Waku Waku It's Love | "Waku Waku It's Love " | 03:23 | Duet with Malina Takahashi as Route θ |
| 7 | 2002 | Waku Waku It's Love | "Go Go Happy" | 03:58 | Duet with Malina Takahashi as Route θ |
| 8 | 2003 | Painting | "Painting" | 05:08 | Duet with Malina Takahashi as Route θ |
| 9 | 2003 | Painting | "Onna No Ko Magic" | 04:30 | Duet with Malina Takahashi as Route θ |
| 10 | 2005 | Inuyasha OST | "I Am" (Korean Version) | 01:24 | Solo |
| 11 | 2008 | Working Mom OST | "KKok" | 03:24 | Duet with Kwon Yuri |
| 12 | 2009 | The First Memorie | "Feeling Only You" | 03:26 | The Blue (feat. Tiffany and Sooyoung) |
| 13 | 2014 | My Spring Days OST | "Wind Flower" | 03:29 | Solo |
| 14 | 2018 | The Light | "Let's Get Away" | 03:57 | James Lee (feat. Sooyoung) |
| 15 | 2018 | Winter Breath | "Winter Breath" | 03:51 | Solo |

Question: What was the final single released by "Winter Breath," and what year was it released?
Answer: In 2018, Choi Soo-young released her solo single "Winter Breath".