President Obama joined musicians Mick Jagger, B.B. King and Buddy Guy in rocking the White House. The Red, White, and Blues concert was held in the East Room in recognition of Black History Month. Buddy Guy handed the president the mic and he sang a verse of the finale song "Sweet Home Chicago". This wasn't the first time the President showcased his singing ability, just last month he sang the opening line to Al Green's megahit "Let's Stay Together". Last nights concert was part of the White House Music Series' salute to Blues. The full concert will air on PBS February 27th.