Watch Michelle Obama And James Corden Get Down To 'Single Ladies' In Carpool Karaoke

Yes, she knows all the words.

As if joining Snapchat didn't make First Lady Michelle Obama cool enough, on Wednesday night she joined Late Late Show host James Corden for a round of Carpool Karaoke.

It all started when James tried to get onto the White House grounds for a tour. The next thing he knew, Mrs. Obama was climbing into the passenger seat.

"I hear you're here for a 1:45 tour, and I have a little time on my hands, so you wanna go for a spin?" she asked.

How could anyone say no to that?

After a quick sing-along to the First Lady's favorite artist Stevie Wonder and a serious discussion of late-night grilled cheese, it was time for a little Beyoncé.

Not only does Mrs. Obama know all the words to "Single Ladies" — she's also got the moves.

"We were making honey there in the hive," Mrs. Obama declared when the song finished. "We were making honey to put in our lemonade!"

The First Lady also took a moment to discuss her Let Girls Learn initiative, which seeks to provide education for the 62 million girls worldwide who aren't in school.

That's when Missy Elliott popped up in the back seat to help sing her new track "This Is For My Girls."

Missy had to run to catch the 1:55 tour, but not before a quick rendition of her classic "Get Ur Freak On." And by the way, Mrs. Obama also knows that one by heart.

"We need to talk about the rhymes that are in the First Lady's locker," James marveled.

See those rhymes in action in the video below: