And it involves Glee!!!
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Did a martian land on Earth and party with Londontown's star-studded crowd? LOLz!
The singer attended the 2013 UNICEF UK Halloween Ball in London and performed with Robbie Williams to raise money for the children of Syria!
— Jemima Khan (@Jemima_Khan) November 1, 2013
The singer seemed to have a fun night! She even ran into her uncle?
Me and uncle Karl . Lolololololololol pic.twitter.com/ApgWafzCD6
— Lily Allen (@lilyallen) November 1, 2013
We are unsure if Karl Lagerfeld approves of your Halloween costume, Lils.
But then again, he doesn't really smile often.
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[Image via WENN.]