I got a Crystal Gayle concert video cassette from about 20 years ago. She was wearing a long dress, so you could only see her hair during a few shots from the rear. I could probably copy it to a DVD if I could find it.

She has a "Christmas in Sweden" video that's available from Amazon and other online dealers. I saw it on TV, and it really, really sucked. There may have been a few good shots of her hair, but the performances were so awful I found it hard to pay attention to hair. I hope whoever got her into this mess got fired.