Simon Cowell addressed the rumors that he is engaged to girlfriend and makeup artist Mezhgan Hussainy after tabloids began to notice his lady friend wearing a giant rock on her ring finger. When asked on "The Tonight Show" if the engagement rumors were true, the "American Idol" judge responded, "Are they true? Well, I do have somebody in my life now, Jay, yes. And I kinda made a decision this year to make somebody happy." Host Jay Leno began to razz a blushing Cowell about the huge ring h...