'American Idol' judge Simon Cowell squirmed in his seat on 'The Tonight Show with Jay Leno' on Monday when the host dissected reports of Cowell's engagement to 'Idol' makeup artist Mezhgan Hussainy. "Are rumors you're engaged true?" Leno asked. Cowell 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." Later, Leno spotted Hussainy in the audience and invited her to come on stage. The two held hands as Cowell gave her a kiss. Watch: