It went so well last month when he belted out part of Al Green's “Let’s Stay Together” that President Barack Obama took the mic again.
This time he gave a musical shout-out to Chicago.
At a White House event Tuesday night honoring Black History Month and the blues, Obama sang a short impromptu rendition of "Sweet Home Chicago" with B.B. King.
At King's urging, Obama sang the line, ”Come on, baby don’t you want to go?” to much applause.
He finished with the signature, final line: "Sweet Home Chicago."
The president had a little Windy City support on stage too. Chicago blues guitarist Buddy Guy was among Mick Jagger, B.B. King and Jeff Beck on stage performing the blues for the East Wing event.
Watch the full performance here: