Next week, Glee will grace us with a TWO-hour episode, where the McKinley kids take on Nationals and everyone swaps character roles!!!

We showed you the promo for the episode, along with a behind the scenes look earlier this week, and now we get even MORE of a glimpse of what we are in for with this NEW clip!

Check out the sneak peek (above) of Tina's head-bumping incident, which leads to the whole body-switchup!

LOLz! We LOVE it!

Puck as Blaine looks Rachel! What an AHmazing idea!

Make sure you tune into Fox on Tuesday to see the rest of the Freaky Friday madness...oh yeah, and to check out our guest starring Glee debut!