In the caption. Souza explained he's still editing the Year in 2014 Photos, but counted this one among his favorites. "I may include this one even though it's a posed photo," he wrote. "The kids from Girl Scout Troop 2612 in Tulsa, Oklahoma, convinced the President to wear a tiara with them for their group photo. The girls had exhibited a Lego flood proof bridge project."
Good work, girls. Good work. (And may we say, Mr. President—that tiara looks good on you.)