17 rich and famous people who were once homeless

Rags-to-riches stories don't just happen in the movies.

Some of the world's richest and most successful people didn't start off that way; they spent nights sleeping on the streets, in their cars, or on friends couches.

Here are 17 incredible stories of people who turned misfortune into great success.

Vivian Giang contributed to an earlier version of this story.