You can get this pin by placing first in the Style Rehearsal Seasons. It is enough to reach the first place once to get the level 5 pin.
This is the amount you need:
|Level||Tier / Level / Rank|
After reaching the 5th level, you can level this pin again with the same number. After that, the color no longer changes, but a number appears on the pin. This shows other users how many times you have reached the last level.