Here are some black prom hair long styles that you may want to look into for your big high school celebration gathering. Some of these women are relaxed, some are natural and of course the almighty weave and laced front wigs are present. Depending on what you are shooting for more than likely one of the names above will take place in your style selection.
If you are not already natural and close to bra strap length you may have to use some type of extension to gain the required length you may be looking for. Either way you now have a couple of pics to check out for some prom hairstyle inspiration.