In show-stopping gowns and barely-there minidresses, these Hollywood icons know how to create major fashion moments. Who can forget Gwyneth Paltrow’s cut-out Stella McCartney minidress, or Julia Roberts’s legendary vintage Valentino? InStyle fashion director Hal Rubenstein reveals 20 of his favorites.

Click through the year in celebrity weddings, the dazzling photos and the intimate details. Find out who hired Elton John and who crashed with George Clooney.