Louis-Dreyfus ranks fourth on Forbes magazine's list of the top ten Hot Billionaire Heiresses. Her father is worth three and a-half (B) billion dollars.
Fashion designer Ralph Lauren's daughter Dylan ranks fifth.
At number six is Aerin Lauder, whose dad chairs Clinique Laboratories.
William Randolph Hearst's great-granddaughter Amanda Hearst is number seven, followed by Delphine Arnault Gancia, the daughter of luxury goods tycoon Bernard Arnault. Britain's answer to Paris Hilton, Tamara Eccelstone, is ninth and Virgin mogul Richard Branson's daughter Holly Branson is tenth.