oversized sweatshirt with the neck cut out so that you can have one shoulder hang out. Obnoxiously colorful spandex and legwarmers. High ponytail on off to one side of your head with an obnoxiously colorful scrunchie. Top it off with a fanny pack and some 80's style rayban sunglasses (usually can find at a second hand/thrift store of some sort)
Think the 80's movie FAME for inspiration lol