Kim Kardashian hit the recording studio yesterday ... with Kanye West!

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Kim, who has an album in the works with The Dream, was spotted going into a studio yesterday in Culver City with her mom -- the same studio Kanye was caught sneaking into as well!

Before she showed up, Kim tweeted "OMG u guys have no idea what I'm doing today! You are gonna DIE!!!!"

Think there's a collaboration in the works here?!