Portlandia returns to TV next month with a brand new sixth season, and IFC just released the first trailer today. Tons of new and returning guest stars are slated to show up throughout the season like Steve Buscemi, Louis C.K., Natasha Lyonne, Glenn Danzig, Kumail Nanjiani, and Kyle MacLachlan, and it all starts on IFC Thursday, January 21st at 10:00pm.