LL Cool J (inset) is becoming Dr. Cool J. The rapper-actor, who was recently honored by Harvard as the university’s Artist of the Year, will receive an honorary doctorate of arts from Northeastern University at the school’s commencement Friday. Former NFL player Wade Davis, who cofounded the You Belong Initiative, which promotes inclusion in sports, will get an honorary degree in public service. Janet Napolitano, the former secretary of homeland security, will be the morning’s commencement speaker. She will also receive an honorary degree in public service.