Watch - 'Glee' Does 'Gangnam Style'

Darren Criss, Kevin McHale, and Jenna Ushkowitz just gave fans a Halloween treat by posting a video that shows them taking on PSY's hit Gangnam Style.

Take a peek at the Glee cast rehearsing those infamous dance steps after the jump. The video also includes a short look at the final product, which you will be able to see in full in a few weeks.

Glee returns from its fall break next Thursday, Nov. 8, on Fox.