Hot & Cold
Here's a warning to anyone thinking of jilting Katy at the altar...
The video for 'Hot N Cold' sees her in the chapel saying her vows, but it seems her other half isn't quite as keen to get hitched as she is.
And let's just say the consequences aren't pretty.
The follow-up to I Kissed A Girl had us in stitches, so watch the video in full above.