I'm super late to this story, but for what it's worth, Chris Kaman cut his hair. As he writes on his blog, it was all an accident:
The truth of the story is that I just went to get a little trimmed off and the person who was trimming it off cut a little too much off and it looked like a girl’s haircut. I just looked at it and thought, “This just looks terrible; you’ve got to cut it.” So I had to have her cut the rest of it off. I’m not going to say the name of the person – she knows who she is and I don’t want to put her out there.
Right away all my teammates liked the new look. They couldn’t believe I cut my hair because I had that cut for so long.