Luis V. Gutierrez -- Bad Ass Congressman Attacks AZ Immigration Law ... Using Justin Bieber

This. Is. AWESOME.

Justin Bieber, Jeremy Lin and Geraldo Rivera were thrust right into the center of the controversy surrounding Arizona's "Show Me Your Papers" law ... courtesy of one pissed off congressman.

Rep. Luis V. Gutierrez (D-IL) took the floor of the House of Representatives yesterday and played a game called, "Pick Out the Immigrant" ... in an effort to prove it's impossible for law enforcement to determine someone's citizenship based on their appearance.

Gutierrez -- clearly fired up about the recent Supreme Court ruling backing parts of the SMYP law -- explained, "In Arizona today, all that stands between you and a legal nightmare is whether a police officer feels there is a reasonable suspicion to inquire about your country of origin. Yet, Arizona politicians will tell you with a straight face no less, that they can apply this law without using racial profiling."

To prove them wrong, Gutierrez showed several pictures featuring two famous people and challenged congress to "Pick Out the Immigrant."