找到2019年最受欢迎的10首歌曲，并给出每首歌曲的演唱者和流派。


- 年份：2019
以下是2019年最受欢迎的10首歌曲及其演唱者和流派：

1. Old Town Road - Lil Nas X (Country Rap)
2. 7 Rings - Ariana Grande (Pop)
3. Bad Guy - Billie Eilish (Alternative/Indie)
4. Sunflower - Post Malone and Swae Lee (Hip-Hop/Rap)
5. Senorita - Shawn Mendes and Camila Cabello (Pop/Latin)
6. Truth Hurts - Lizzo (Hip-Hop/Soul)
7. Someone You Loved - Lewis Capaldi (Pop)
8. Without Me - Halsey (Pop)
9. Shallow - Lady Gaga and Bradley Cooper (Pop/Rock)
10. Dancing with a Stranger - Sam Smith and Normani (Pop)