Justin Timberlake Surprises Superfans In Commercial [VIDEO]

As a fun way to promote his new album, VEVO asked Justin Timberlake's biggest fans to be apart of a special commercial, and they got a huge surprise.

What they did not know was while they were singing 'Mirrors' from 'The 20/20 Experience' in the commercial, Justin Timberlake, himself, came out to surprise them. Watch the video below for their reactions.