Vanessa Hudgens and Zac Efron
High School Musical
stars Vanessa Hudgens
(wearing Cathy Waterman earrings) and Zac Efron
(in Dolce & Gabbana
) refused to divulge what Efron called their "top secret" roles in the show. Less mysterious was the maker of Hudgens's fanciful dress: Marchesa
. "I feel like a young Audrey Hepburn," Hudgens said of the confection, which was custom-altered (the original design was shorter) by designer Georgina Chapman.