Katherine Zeta Jones does! Apparently she washes her hair in truffles and caviar. Five days before she needs to use the shampoo, a London spa flies in the fish eggs from Iran.

She then washes her hair in truffle based shampoo and then applies caviar.

Im not sure how good that would be for your hair, but my guess is that she just has too much money and she doens't know what to do with it.

Hmm something smells fishy

Well done Allan .. that was THE best joke ever!
That is kinda weird tho..maybe it gives it nutrience or something? :)

She may just be onto something. Alterna makes a range of Shampoo's & conditioners which contain White truffle extract and Caviar extract.