Leona Lewis' clunky heels (left) shorten her frame."The shoes and the opaque tights weigh down the light, airy dress," says Alana Kelen, senior fashion stylist for VH1. "Tiered ruffles don't help either."

But Leona's dainty sandals (on the right) elongate her legs. "Bare legs and strappy sandals work wonders," says Kelen. "The Jenny Packham frock is so frothy, it needs simple shoes to offset the volume."

For more of Kelen's shape-enhancing tips, pick up the latest issue of Life & Style, on newsstands now!

Photo Credit: Sipa; x17