WATCH: First Lady Michelle O. on The Tonight Show

On Tuesday night's "The Tonight Show with Jay Leno," Michelle Obama (wearing a favorite J. Crew skirt) explained to the world that her marriage includes a musical element. Referring to President Obama's now-famous rendition of Al Green's "Let's Stay Together," Leno asked the First Lady, "Did you ever think at this point in your lives together he [President Obama] would become a singing sensation? Did you ever think that would happen?" She responded, "No. No. Not at all. Not at all." Obama explained to Leno that the President's performance at Harlem's Apollo Theater was "completely spontaneous" and that she "didn't even hear about it until it got on YouTube." She told the late-night host that her husband "does have a beautiful voice, and he sings to me all the time." WATCH the First Lady's interview below and continue reading this article HERE.