Al Green turned down request to sing for President Barack Obama's inauguration Last year, President Barack Obama paid tribute to Al Green by belting out a few lines from his classic hit "Let's Stay Together." Unfortunately, though, Green had to pass up the chance to return the favor this time around. The legendary singer had to turn down a request to sing at the prez's inaugural ball Monday, per published reports. In a statement, Green's rep confirmed that while the singer had indeed been approached to perform at the gala, he had to decline due to scheduling conflicts. Watch Obama break into song! Instead, it was Jennifer Hudson who ended up crooning Green's classic song at the inaugural ball. Last year, Obama brought the house down at a fundraiser in New York City by busting out an impromptu rendition of "Let's Stay Together." See pics of celebs partying at the Inaugural Balls And although the crooner in chief only sang a teeny riff, he later deferred to the music legend, who was indeed in the audience. "I cannot sing like you," Obama told Green. I just wanted to show my appreciation. No doubt, that gracious gesture wasn't lost on Green.