Anyone know what blues song is playing in the new Lexus commercial starring John Legend?

In the commercial, Legend is talking about how the song builds in intensity, and the female singer sounds like "she's just not gonna take it anymore."

Nina Simone from 'The great show- live in paris, 1968'- arguably one of the best live shows she ever did....(you can buy the album on amazon- it's just listed as 'live in paris',

I was getting ready to ask the same question, I hope we get an answer. . .I like the way that song sounds.