Neil Patrick Harris has a new variety show called "Best Time Ever," and in the debut episode, Neil played a hilarious joke on Adam, Pharrell, Gwen, and Blake.

Neil Patrick Harris went undercover on "The Voice," posing as the host of the Austrian version of the show. He interviews the judges and then goes out to actually audition, before revealing his true identity. Just one more reason to love him! Here's the scene from the show: