Source: Tony Duffy / Getty Images
31. Mark Spitz
> Known as: Olympic swimmer
Source: Public Domain / Wikimedia Commons
32. Martin Luther King Jr.
> Known as: Civil rights activist
Source: Drew Angerer / Getty Images
33. Michael Bloomberg
> Known as: Businessman, Mayor
Source: Handout / Getty Images
34. Michael Jordan
> Known as: Basketball player
Source: Thos Robinson / Getty Images
35. Michael Moore
> Known as: Filmmaker
