Rock 'n Roll -
For those with straight hair, this is a great rock 'n roll style. I can think of many musicians past and present who have donned this do.
Long and Curly -
I hesitate to call this a shaggy hairstyle since it is so long, but this is a great example of how beautiful curly hair can look on a guy. It definitely reminds me of more artistic types.
Short and Shaggy-like -
Shaggy doesn't necessarily mean long. The great thing about having a shorter haircut (with a little length on top) is that it can be messed up a little to give it a bedhead kind of look, as well as tamed in case you need to be taken a ittle more seriously.
The Classic Shaggy Look-
Nobody wears a shaggy hairdo like Ashton Kutcher. He was wearing this hairstyle before it was seen everywhere
Medium Length and Wavy -
If I had the patience to grow my hair out, this is how I would style it. It's not too long and frames the face well.