1. When they became the first girl group since the Spice Girls to have an album at No. 1 for five weeks:
2. When they opened the Brit Awards with a performance of "Shout Out to My Ex" and SLAYED:
3. And then when they won for Best British Single and made us all feel like proud BFFs:
4. When they proved to be the very definition of best friends:
5. When they celebrated their six-year anniversary of becoming a group on The X-Factor:
6. When they opened for Ariana Grande on the US leg of her Dangerous Woman tour:
7. When they supported the victims of the Manchester bombing by performing "Wings" at One Love Manchester:
8. When they let fans into their world by releasing their Glory Days documentary:
9. When Jesy proved to be the proud mom of the group and gushed about Perrie, Leigh-Anne, and Jade during the Glory Days documentary:
10. And of course, when they gushed about her right back:
11. When Jesy and Perrie tried to teach us how to pop and lock, but they couldn't keep a straight face:
12. When Jade realized she was talking to a real-life astronaut in space and was completely blown away:
13. When they continued to be the queens of a cappella and acoustic performances:
14. When they stood together with their moms in the “Power” music video and it was adorable:
15. When they were drop dead gorgeous on the cover of Tmrw Mag:
16. When they continued to give their fans all the love in the world:
17. When they collaborated with CNCO on "Reggaetón Lento" and absolutely crushed it:
18. When they showed off their killer dance moves in the music video for "Touch":
19. When they won a Kid’s Choice Award for Favorite Global Music Star:
20. When they continued to stand by each other and prove how important female friendships are:
