Watch These Superstars Get the Surprise of a Lifetime While Singing 'Hallelujah' (VIDEO)
It was already a big deal for The Canadian Tenors to perform on "Oprah" in 2010. Their star was rising in America, and this appearance would be a big boost.
When they start performing their hit cover of Leonard Cohen's "Hallelujah," it's easy to see – and hear – why Canada loves them. But when Oprah unveils the surprise of a lifetime, you can't help but cheer for how they keep it together and finish with a bang.
