Today is Father's Day—the very first that Kanye West celebrates with his daughter.

Kim Kardashian, his longtime girlfriend, gave birth yesterday in Los Angeles to a baby girl. It's been a long time coming. (Just about nine months, we bet!) The pregnancy—the couples's relationship in general, really—has taken much of the media spotlight for the past few months.

Kanye's sixth solo album, Yeezus, leaked on Friday—five days before its anticipated release date of June 18. This is his first child.

Kim and Kanye go way back—from his appearances on her E! shows Keeping Up With The Kardashians and Kourtney & Kim Take Miami, to their recent public appearances together, like at this year's Met Gala.

Here is a Brief History of Kanye West and Kim Kardashian's relationship.

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