'Glee' Hunk Dean Geyer -- Shirtless, Ripped & Stiff as a Board

Here's the one reason you should still be watching "Glee" ... new cast member Dean Geyer's yoked body.

Flashing his ripped and hairless acting muscles, the 26-year-old skateboarded shirtless through Santa Monica on Wednesday.

Now this is something to sing and dance about.