Obama belts out the blues with B.B. King, Jagger and Buddy Guy President Obama took to the microphone again, this time to belt out "Sweet Home Chicago" with B.B. King. TODAY's Natalie Morales reports. 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. Win McNamee / Getty Images 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. President Obama took to the microphone at the White House's Black History Month Blues Concert, along with B.B. King and Mick Jagger. 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. Shemekia Copeland (L) and Susan Tedeschi (R) perform with an all-star cast on Tuesday night.