Celebrities from Rihanna to Reese Witherspoon to Jon Bon Jovi to John Legend are some of the most well-recognized monikers in the world — but for many, it's not the name they were born with. Whether it be to shorten their name or make it more memorable to stand out in Hollywood, many celebrities choose to tweak or adapt an entirely new name when they start rising in fame. See some A-list celebrities who have changed their name.