The Feb. 2 episode of "Jimmy Kimmel Live" featured a reunion of the cast of the hit show "ER."

Actually, it was just George Clooney in the sketch since, according to Kimmell, none of the rest of the cast was available. But, he did get Clooney some help, from another classic TV doc!

Check out this epic mashup, and don't miss the "Rapper's Delight!"