Pablo Martinez Monsivais / AP

B.B. King, left, Buddy Guy and Warren Haynes, right, perform during the White House Music Series saluting Blues Music in recognition of Black History Month, Tuesday, Feb. 21, 2012, in the East Room of the White House in Washington.

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President Barack Obama speaks on Tuesday night.

Chris Kleponis / Reuters

Blues legend B.B. King signals approval while performing on Tuesday night.

AP reports: At a concert tonight at the White House marking Black History Month and celebrating the blues, President Obama again took the mic. He was challenged by the musicians on stage to follow up his Al Green "I'm So In Love With You" performance, "You done started something, and you gotta keep it up now." After initially laughing off the offer, the President took the microphone and sang several lines of "Sweet Home Chicago" from his spot in the front row. He tried handing the mic back more than once, but continued singing, even alternating lines with BB King.

The concert featured music legends and contemporary major artists, including King and Mick Jagger, as a celebration of Blues music and in recognition of Black History Month. The concert, airing next week on PBS, is part of the "In Performance at the White House" series.

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Shemekia Copeland (L) and Susan Tedeschi (R) perform with an all-star cast on Tuesday night.

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Donna McWilliam / AP file

Blues singer David "Honeyboy" Edwards performs at North Dallas High School in 2007 in Dallas, Texas. Edwards died of congestive heart failure Monday, Aug. 29, 2011, in his Chicago apartment at age 96.

A chapter of American music history is closing with the death of blues guitarist and singer David “Honeyboy” Edwards. He never achieved the fame of many of his colleagues, but Edwards was an influential voice among members of the music form that came out of the Mississippi Delta and traveled up to Chicago along with thousands of migrant workers.

His style was minimal and raw. Like many of the great Delta bluesmen, his music provided the source material that much of today’s music grew out of. Rest well and play on David “Honeyboy” Edwards.

Watch the video below to hear Honeyboy’s minimal guitar style and unique vocals from a 1988 recording session. Later in life Edwards said that some modern guitarists play too many notes when they play the blues. I agree with him. I’ve always thought that when it comes to the blues -- what isn’t there is as important as what is.

Read more about Edwards at his website.