Originally posted by John Lambert:
There is another reason for having the wig. In one comic situation where Lois used a computer to figure out what would happen if she had come from Krypton instead of Superman, she used a black wig to hide her black hair.
However, since Clark Kent did the "cut your hair to see if you are Kryptongirl" test, it actually helped to have a wig.
Fortuantly for Clark in L&C, Diana Stride never came up with an idea like trying to cut his hair, since as we saw in "Chip off the Old Clark" even a single strand of his hair can break scissors.
^___^.
Well, in this story, she doesn't wear a wig, but, she DOES laser-vision her hair cut, with the use of mirrors.
Look at one of the deleted scenes in Supergirl: The Movie to see how that worked.
Wasn't there an instance in the series where he laser-visioned his 5 o'clock shadow?