When it Rains in Hollywood, it Pours.

Luckily for Hollywood’s party monsters, it’s didn’t rain last evening at  the Post-Grammy Style Mansion party hosted by Katy Perry.

Well, for most of the guests at least.

Britney Spears’ former pal Alli Sims ended up throwing a fit when she spotted a former business associate chatting it up with Katy Perry.  As she frantically approached this person, whom she apparently owes a hefty sum of money, she got a vodka shower.

Nothing says embarrassment like a face full of Belvedere!   But such is life when you continuously bite the hands that feed you.