1. Go to the Movie Town: Log into your MSP account and head to Movie Town.
2. Click on Your Avatar: Click on your avatar in Movie Town.
3. Go to the Fashion Section: In the menu that appears, you will see categories such as 'Clothes', 'Hair', 'Makeup'. Click on the 'Hair' option.
4. Select your Hair: Here you will see all the hairs that you have purchased previously.
5. Choose a New Color: After selecting your hair, you will see options to change the color. Select your desired color.
6. Confirm the change: Confirm that you want this hair by clicking on the 'Buy' button (it will cost 0 StarCoins since you already own the hair).
7. Save: After you have changed your color, click 'Save' to update your avatar's appearance.
Important Notes:
* Make sure you have the hair selected before you try to change the color.
If you encounter any problems while doing this, you may want to contact MSP Support for further help.