あげはさん誕生日おめでとう！🎉
アゲアゲ〜！☝️🥳☝️

Happy Birthday, Ageha-san! 🎉
Exciting exciting~! ☝️🥳☝️

[tn]
Uses "Age", the first part of Ageha's name, which also means exciting. It's also her catchphrase.
[/tn]