Like Pucci-esque prints and big aviator sunglasses, hoop earrings have been reborn. Trendsetters ranging from pop icons like singer and actress Jennifer Lopez to top-name international clothes designers are defining style with hoops. Not since the 1970s have hoop earrings been so prevalent in fashion and culture. Hoop earrings portray confidence, uncluttered style, and sex appeal, the same qualities that fashion in general embodies this year. Hoops' high profile has been reinforced on the runways of clothing designers like Jean-Paul Gaultier and Christian Dior, in fashion spreads of magazines likeW, and in advertising campaigns by Versace. Generally large, thin, and yellow gold, hoops often are paired with layers of chains, a hot style for necklaces right now. The look springs from the sleek and sexy lines that strode down the runway for fall and winter. But while shoulder-brushing hoo