Former NFL commissioner Paul Tagliabue, who died Sunday at the age of 84, cherished a letter he once received from Ronald Reagan.

The highlight came at halftime when singer/songwriter Rachel Platten took the field to perform her anthem “Fight Song.” “The energy is unbelievable,” Platten told Billboard. “There are 70,000 people, and you’re feeding off the team’s energy. The Rams scored a touchdown right before I went on, so the whole place was already lit up.”