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Taylor Swift Films Lena Dunham Dancing To A Song Called 'Lena Dunham'

And the world is a flat circle looking into a hallway of mirrors.

Did you guys know that Lena Dunham has a rap song called "Lena Dunham"? We did, because we're hip to awesome Brooklyn act Hand Job Academy (yes, that is the name of the band).

Now, it seems, Taylor Swift and Dunham are digging the bad-ass girl group as well -- as Swift just posted an Instagram video of the "Girls" star dancing to her namesake jam.

This was what happened when Lena and I found out that there is a rap song called 'Lena Dunham'. @lenadunham

A video posted by Taylor Swift (@taylorswift) on

It's no real surprise that Dunham happened upon HJA's song this week. The band -- comprised of AshWednesday, Clara Bizna$$ and UNCLE Meg -- released the music video just the other day. It's kind of NSFW, so we can't post it here -- but we recommend watching anyway. Over and over again. Until you can dance like Dunham.

Maybe HJA could make an appearance on the next season of "Girls"? Get on that, Lena.

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