Katy Perry Goes Undercover to Ruin People's Birthday Parties - VIDEO

Katy Perry has a new music video out for her song "Birthday" and it's basically eight minutes of her going undercover and ruining unsuspecting people's birthday parties.

Really.

She dresses like an old woman and jumps out if birthday cakes to give lap dances, she puts on a clown costume and fails at balloon animals, she attempts to paint little girl's faces, tell jokes at a Bar Mitzvah and makes a bunch of kids cry when she eats a mouse.

Not to mention that car accident she causes.

To sum things up: she takes on a lot of birthday party jobs and she's terrible at all of them.

Don't quit your day job Katy Perry. And not just because your day job pays a whole lot better.

NEXT: Who Knows More About Katy Perry, Her or a Superfan?