Credit: Jason Merritt/Getty Images, Jason Kempin/Getty Images

It’s been a big week for crush-worthy funny man Jason Segel. The actor’s beloved CBS sitcom, How I Met Your Mother, dropped its curtains last night after a whopping nine seasons — whether the finale was any good is still up for dispute. Now, the trailer for Jason’s upcoming R-rated comedy Sex Tape, alongside Cameron Diaz, has been released, and let’s just say that he’s left little to the imagination…

As would be expect for a movie with such a title, Jason and his Bad Teacher co-star play a couple that tries to spice their marriage with an, ahem, adult home video. However, things go awry when the footage is accidentally sent to all of their closest acquaintances — bosses, parents, mailmen, you name it!

While the premise is certainly a little out-there, the more shocking part of this trailer is the crazy makeover Mr. Segel has undergone for the role! Way back in Summer 2013, Jason showed off his super-fit bod at an industry event, explaining that the project had inspired him to get in shape. “I've just been living healthy, exercising, eating right — no more midnight pizzas,” he detailed.

And it paid off! We see the HIMYM star strip down to his skivvies in the sneak peek, and dude is showing off all muscle and basically zero fat. It’s quite a departure from his other undie-wearing role in 2008’s Forgetting Sarah Marshall — which was apparently Jason’s intention.

"This time when I take my shirt off, I've made a promise to myself, it doesn't have to be funny,” the actor quipped.

No laughter here, buddy!

What do you think of Jason’s dramatic makeover? Tell us in the comments below!


Credit: NDN Photo: Trailer for Movie Sex Tape (VIDEO)
Samantha Lear is an Assistant Editor at Wetpaint Entertainment. Follow her on Twitter and Google+!