| 1 | A | B | C | D |
| --- | --- | --- | --- | --- |
| 2 | Allie X - Songwriting credits |  |  |  |
| 3 | Year | Artist | Title | Album |
| 4 | 2015 | Troye Sivan | "Bite" | Wild EP |
| 5 | 2015 | Troye Sivan | "Talk Me Down" | Blue Neighbourhood |
| 6 | 2015 | Troye Sivan | "Youth" | Blue Neighbourhood |
| 7 | 2015 | Troye Sivan | "Lost Boy" | Blue Neighbourhood |
| 8 | 2015 | Troye Sivan | "For Him." | Blue Neighbourhood |
| 9 | 2015 | Troye Sivan | "Suburbia" | Blue Neighbourhood |
| 10 | 2015 | Troye Sivan | "Swimming Pools" | Blue Neighbourhood |
| 11 | 2017 | Seohyun | "Moonlight" | Don't Say No |
| 12 | 2017 | Lea Michele | "Heavy Love" | Places |
| 13 | 2017 | Jaira Burns | "Ugly" | Non-album single |
| 14 | 2017 | B.A.P | "Think Hole" | Ego |
| 15 | 2018 | Troye Sivan | "Seventeen" | Bloom |
| 16 | 2018 | Troye Sivan | "The Good Side" | Bloom |
| 17 | 2018 | Troye Sivan | "Plum" | Bloom |
| 18 | 2018 | Troye Sivan | "What a Heavenly Way to Die" | Bloom |
| 19 | 2018 | Troye Sivan | "Animal" | Bloom |

Question: How did Allie X contribute to Troye Sivan's album Blue Neighbourhood in 2015?
Answer: In 2015, Allie X contributed to Troye Sivan's album Blue Neighbourhood by writing for albums singles "Talk Me Down" and "Youth".