This app was mentioned in 2 comments, with an average of 2.50 upvotes
Idolish7, it's Japanese only though. It does have 2 seasons of anime (with the third season starting this summer), the character in question doesn't really have the long pony tail though, that was just for that particular illustration.
PV for season 1
https://www.youtube.com/watch?v=Jc-Uiz0y2d8
Play store link for the game (you'd need to sideload it if you want to play and aren't in Japan)
https://play.google.com/store/apps/details?id=jp.co.bandainamcoonline.idolish7
Most of the stuff listed in here were suggestions I was already going to make for you to try! If you don't mind, I'll try to make a list and add to it along the way.
Rhythm Games
Non-rhythm apps you may enjoy!
These are most that I saw listed/ can think up of as well. If people keep listing more I can keep adding to the list, if you'd like. Hopefully you find most if not all of these games fun to play!