During her London concert at the O2 Arena on Saturday, Nicki Minaj got to hang out backstage with one royally hunky fan: Princess Diana's nephew Louis Spencer! Spencer is clearly a big fan of the 32-year-old rapper. During their meet and greet, the duo were all smiles while posing for pics together. Minaj shared one pic Saturday night, writing, "The Royal Family stopped by. @louisspencer Nephew of Princess Diana - he said he wants to marry me #LONDON #ThePinkprintTOUR."