Bully/Barbers

Visiting a barber will allow you to change Jimmy's hairstyle. Like changing his clothing, this is a purely cosmetic change and will not affect gameplay (except for the Weedkiller mission, which requires Jimmy to get a Preppie haircut).

The Happy Mullet
Along the main street in Bullworth Town.

Old Bullworth Vale Hair, Nails and Beauty
In Old Bullworth Vale, near the Aquaberry store.

The Final Cut
In New Coventry, along the road to the left just after you pass under the bridge. Also contains a clothing store.