#8. Prince Harry and Cameron Diaz
The British royal met the “Charlie’s Angels” actress in 2011 when she joined his exclusive gym to get in shape for a film in England. The two hit it off immediately, and became gym buddies, and later drinking buddies. Although they were clearly close, they never made things romantic, and Diaz returned to America to go house-hunting with her then-boyfriend Alex Rodriquez after her film wrapped.