It all depends on who it is on. Some guys look great with it long, but no longer then shoulder length. The surfer dude on TMZ looks good with it longer and some rock stars do too. From around 15-21 I use to have mine down to my chin, but it is curly so it looked shorter, and I loved having at that length. But the genetics kicked in and my hairline began to recede, looks better buzzed now!