President Obama was egged on to sing a little of ‘Sweet Home Chicago’ at the White House rock-blues concert Tuesday night.

The White House hosted the rock-blues concert in part to honor the blues as part of Black History Month. Buddy Guy, B.B. King and Mick Jagger among other performed. Tuesday also happened to be Mardi Gras.

Here is an excerpt of the full story from The Root:

But before the show got started, the president took a moment to give some history on the blues. He recounted a 1941 trip throughout the deep South by folklorist Alan Lomax, during which Lomax recorded local musicians on behalf of the Library of Congress -- and came upon a then mostly unknown guitarist and singer, Muddy Waters.

"This is music with humble beginnings -- roots in slavery and segregation, and a society that rarely treated black Americans with the dignity and respect that they deserved. The blues bore witness to these hard times," Obama said. "Like so many of the men and women who sang them, the blues refused to be limited by the circumstances of their birth."

He continued that the blues laid the foundation for rock and roll, R&B and hip-hop. "This music speaks to something universal: No one goes through life without both joy and pain, triumph and sorrow. Blues gets all of that, sometimes with just one lyric or one note. As we celebrate Black History Month, the blues reminds us that we've been through tougher times before."

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