Glee boys appear in vintage clip about STDs.
Tonight's new episode of Glee takes on the serious topic of sex STDs and showcases the boys in an old-time newsreel-style video that gives tips for stopping the STD epidemic in its tracks.
In the episode, Artie (Kevin McHale) tests positive for a disease and is forced to tell his sexual partners.
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Meanwhile, Kurt (Chris Colfer) and Blaine (Darren Criss) have relationship issues when Blaine puts on his "freshman fifteen."
Watch the entire sneak peek of tonight's all-new episode, airing at 8:00 p.m. ET/PT on FOX.