President Obama has been singing a lot lately—first soul, then the blues—so when can we expect him to bust out in song again? White House Press Secretary Jay Carney has one cheeky theory, USA Today reports: "at the inauguration next year." Of course, that drew a quick response from George W. Bush's press secretary, Ari Fleischer, who tweeted, "I agree w Carney that O will be singing on Inauguration Day. Singing for his supper ... somewhere on the paid speaking circuit." Click to hear Obama's renditions of "Let's Stay Together" and "Sweet Home Chicago."