(NEWSER) – President Obama botched a very popular song lyric—and one that's pretty easy to remember if you know how to spell—last night at the White House's "Women of Soul" performance, the AP reports. "When Aretha [Franklin] first told us what R-S-P-E-C-T meant to her," he said at one point, before being interrupted by laughter from the crowd. He continued after a pause, according to CBS News: "...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." Franklin performed at the show, as well as others including Patti LaBelle and Ariana Grande. The concert will air on PBS on April 7.