By Amie Parnes - 02/22/12 12:37 PM EST
For the second time in recent weeks, President Obama hit the high notes, this time singing a few lines of "Sweet Home Chicago."
After taking in the program, "In Performance at the White House: Red, White and Blues," Obama hopped on stage to thank the performers, including B.B. King, Mick Jagger and Buddy Guy, for participating at the White House event.
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