In an “oops” moment tonight, the president dropped a letter when paying tribute to the one and only Franklin at the White House concert series event, “In Performance at the White House: Women of Soul.”

“When Aretha first told us what R-S-P-E-C-T meant to her, she had no idea it would become a rallying cry for African Americans, and women, and then everyone who felt marginalized because of what they looked like or who they loved. They wanted some respect,” the president said.