50. Carla Bruni
Age (circa 2009): 41
Occupation: Model/Singer/First Lady
With all due respect to Michelle Obama, the award for hottest First Lady in the world must go to the Italian former high fashion model and singer, Carla Bruni. Despite claiming to prefer polygamy, Bruni settled down with French president Nicolas Sarkozy in 2008.
Becoming the only First Lady to have sold a nude photo of themselves at an auction. And, come to think of it, the only First Lady to had naked photos in circulation.