Patti LaBelle (C) performs 'Over the Rainbow' during the event, 'In Performance at the White House - Women of Soul', on March 6, 2014 in the East Room of the White House in Washington DC.

Patti LaBelle (C) performs ‘Over the Rainbow’ during the event, ‘In Performance at the White House – Women of Soul’, on March 6, 2014 in the East Room of the White House in Washington DC.

*It wasn’t as horrific as John Travolta’s “Adele Nazeem” moment, but President Obama fumbled the spelling of Aretha Franklin’s signature song while saluting the Queen of Soul and other musical legends during a White House concert Thursday night.

“What a lineup!” Obama said to open the “Women of Soul” affair that included a generations-spanning array of soul singers that stretched from musical legends Aretha Franklin and Patti LaBelle to Jill Scott and Janelle Monae, to 20-year-old Ariana Grande.

Obama paid tribute to Franklin for turning her signature song “Respect” into “a rallying cry for African-Americans, women and then everyone who felt marginalized.”

According to the AP, the enthusiastic crowd fell out laughing, but was more than willing to forgive the president for spelling it “R-S-P-E-C-T.”

Patti LaBelle (C) performs 'Over the Rainbow' during the event, 'In Performance at the White House - Women of Soul', on March 6, 2014 in the East Room of the White House in Washington DC.

Patti LaBelle (C) performs ‘Over the Rainbow’ during the event, ‘In Performance at the White House – Women of Soul’, on March 6, 2014 in the East Room of the White House in Washington DC.

First up in the East Room lineup was LaBelle, with a thundering delivery of “Over the Rainbow” that had the audience on its feet.

It was a mutual admiration society of sorts as LaBelle thanked the Obamas for their tenure in the White House, declaring, “Baby, you got swag!”

Grande, the youngster in the group, seemed in awe of her fellow performers and the august audience. Her lead-in: “What’s up? How are you? Good to see you. Thank you for having me.”

President Barack Obama delivers remarks while hosting the event, 'In Performance at the White House - Women of Soul', on March 6, 2014 in the East Room of the White House in Washington DC.

President Barack Obama delivers remarks while hosting the event, ‘In Performance at the White House – Women of Soul’, on March 6, 2014 in the East Room of the White House in Washington DC.

The emotional high point came when Franklin, 71, sauntered in, gave a shimmy and declared “Let’s have a party.” Then she went right into “I Never Loved a Man (The Way I Love You)” She was back later to close down the show with what Obama called “one more treat,” — a slow, soulful rendition of “Amazing Grace” that turned rowdy at the end.

But first, all the other ladies — including Melissa Etheridge,  Monae,  Scott and Tessanne Chin — collaborated on a rollicking delivery of “Proud Mary.”

The concert was livestreamed at WhiteHouse.gov/live and will be broadcast as “In Performance at the White House: Women of Soul” on April 7 on PBS.