I noticed that on
NikkanSports, they had this to say about the CM (auto-translation):
Singer Ayumi Hamasaki (25) appears on new CM of the portable MD player "Dockin' Style MD" put on the market on the 21st. Clothes imagined "Muse of the near future" and were made from the optical fiber knit with transparent silicone and the Nishijin brocade. Although it is made so that the body may be fitted from the first, the clothes which emit light are emphasizing the shape. New CM "shining AYU" is broadcast from the 21st.
Not sure if this should be posted here, but it's an interesting fact about her outfit in the CM