Katy Perry Fully Geeks Out In 'Last Friday Night (T.G.I.F)' Video Sneak Peek

We just got a look at Katy Perry's newest video, "Last Friday Night (T.G.I.F)," which premieres June 14 (CAN'T WAIT CAN'T WAIT!), and all we have to say is the woman really commits to a theme. What is obviously an homage to 1980s high school house parties, Katy's decked out as her '80s nerd alter ego, "Kathy Beth Terry" (whom you can now follow on Twitter and "Like" on Facebook). And seriously, it's a little too authentic!

In the video sneak peek, Katy Perry, who's usually dressed in form-fitting latex outfits with edible items over her privates, really lets her inner dorkus malorkus out -- we're talking crimped hair, oversize glasses, a denim vest (NEVER OK!) and headgear. YES, THAT HEADGEAR. But leave it to Katy Perry to wear all of the above simultaneously and still somehow look completely cute. Unfair is an understatement.

And extra props to Katy for including a poster of Hanson on her bulletin board at the end of the clip. Apparently her alter ego Kathy Beth is a big fan, and apparently Kathy Beth and I have something in common (besides our penchant for long-sleeved turtlenecks, of course).

+ Check out the preview of Katy Perry's "Last Friday Night (T.G.I.F)" video below and then go fix the tape on your glasses, wouldja?