From Taylor Swift and Selena Gomez’s sisterhood to Troye Sivan and Ariana Grande’s tight bond, how well do you know these besties? Try our quiz and find out!

1. Where did Shawn Mendes and Niall Horan first meet?
2. Lady Gaga and Elton John collaborated on which 'Chromatica' track...?
3. Which Jessie Reyez track put her on Billie Eilish's radar?
4. Troye Sivan appeared in Ariana Grande's music video for...?
5. Demi Lovato and Sam Smith collaborated on which track...?
6. What was the name of Post Malone's 2016 collab with Justin Bieber?
7. How many tracks have The Weeknd and Lana Del Rey worked on together?
8. What year did Taylor Swift and Selena Gomez first become friends?


SEE ALSO: Friendships In Pop Music That Have Officially Hit Peak #BFFGoals