After making his Broadway debut in How to Succeed in Business Without Really Trying, Darren Criss proved he can master the sleek moves and fashions of the '60s. On the April 17 episode of Glee, Criss showed he's just as comfortable embracing '70s culture. During the disco-themed episode, Glee assembled its best dancers (Criss alongside Heather Morris and Harry Shum Jr.) to tackle the Bee Gees’ disco anthem, “You Should Be Dancing.” The trio then paid homage to the 1977 film Saturday Night Fever with a full blown dance number. Click below to watch Criss channel his inner John Travolta and tune in to Glee every Tuesday for more toe-tapping musical numbers.