Not confirmed.
But I expect that there is one.
The part on the teaser where she says "What.... Happened last night?" isn't on the leaked version so probably there will be a longer or mastered version where that part is included.
OMYGOSH. I'm so slayyyeeed! This is Katy Perry's best video of all time!!! It's so colorful and fun: just perfect for the summer! Queen Rebecca made this epic, indeed! Last Friday Night will shoot to #1, without any doubt! The song and video of the summer, here they come!!!
Maybe the leaked one is the CLEAN version of the video...
There is an EXPLICIT version YAY!
I hope so. It was cute and all but it didn't feel long it enough/didn't have enough of a story to it. Plus I was expecting something a bit crazier. Eh.