My reactions:

2014-SEPTIPLIER AWAY!
2015-*happy fangirling nosies*❤️❤️❤️
2016-*sad fan girl noises*
2017-...what happened to them back then...
2018-*happy noises* OMG THEY ARE SO LIT!!! XD LOL
2019-(no pic but...) It's been a while since you guys collaborate 2016...or 2018 Idk...I still love you guys! ❤️ 💚