Calderon attended the Sunday concert with his wife and his 10-year-old daughter.
The bespectacled leader, dressed in a blue sport coat and gray slacks, spoke briefly to the rock diva - known for her sexy, belly dancing moves - minutes before she sang to 50,000 fans. There were no reports of what the Calderon said to her.
"Thanks for giving me this opportunity to return to this country, which I feel like is my own," Shakira was quoted as saying in Monday's Reforma newspaper, which featured a picture of her and Calderon sitting together on its front page.
In 2016, Iran bought four divisions of S-300 Favorit anti-aircraft missile systems from Russia. Each division includes 12 launchers
Vadim Gorshenin, the head of Pravda.Ru media holding, describes several options of how the situation may develop in Russia in the near future, after Vladimir Putin's presidency