So What? She's just the Y2K version of Madonna. World, get a grip.
And, as to panties ... I never wore them from the 1970's through 2003. What was the point? Until the 80's when Victoria Secret elevated women's underwear (AFTER Madonna made it acceptable as outerwear), I never wore a bra or panties.
After VS made them popular in the 1980's, I had a slew of bras and panties from VS I wore when sex was on the horizon.