The Brit walked away a winner after he was honoured at the Hollywood prizegiving with the Best Performance by an Actor in a TV Series Drama for his role on the US hit show.
After the ceremony, Lewis headed straight to a bash thrown by Fox network bosses and showed off his fun side by performing the now famous Gangnam Style moves performed by the South Korean rapper.
His onscreen son Jackson Pace joined in the routine, before Lewis hit the floor for a slow dance with his wife, Harry Potter star Helen McCrory.
According to E! News, the actor refused to talk to the press on his way to the afterparty, telling reporters, "I'm too drunk to talk!"