Ariana Grande Piano Game 1 is an app very easy to play.
If you are a Arianator or Tiny Elephant you must have this game!!
You just have to touch the black keys fast to hear the melody as smoothly as possible, but you have to avoid touching the white keys, in the challenge mode, you need collect 5 song notes for win one star that would you need to get the newest songs
Note: Challenge mode has a trick to collect more stars, find it