Legally mononymous people

My post about Cher last week prompted Swift Loris to post a reminder comment that Cher is "mononymous."  So of course I had to look up to see who else might be considered mononymous.  There is a LONG list of one-word stage names at Wikipedia (most of them not from the U.S.), and a much shorter list of people who are legally mononymous, either by birth custom (Japanese and Indonesian royalty) or by court order:

• Akihito (born 1933), Japanese emperor
• Cher (born 1946 Cherilyn Sarkisian), American singer
• Michiko (born 1934 Michiko Shōda), Japanese empress consort
• Hirohito (born 1901), Japanese emperor
• Prince (born 1958 Prince Rogers Nelson), American musician
• Sukarno (born 1901), Indonesian president
• Suharto (born 1921), Indonesian president
• Teller (born 1948 Raymond Joseph Teller), American magician