According to doctors Richard Fleming and Toby Mayer their clients ask for plastic surgery not to look exactly like a specific star, but to replicate a distinct feature of various celebrity faces and bodies.

The most requested look-alike female nose was that of "Grey's Anatomy" star Katherine Heigl, while British actress Keira Knightley was tops in the cheek department, and Paris Hilton had the most sought-after skin.

"Grey's Anatomy" star Katherine Heigl