Kim Kardashian Engagement Ring PHOTO, Kanye West Proposes at San Francisco Giants Stadium on North West Mama's 33rd Birthday! [VIDEO]: Orchestra Plays 'Knock You Down' for Family, Friends

It's official - Kim Kardashian and Kanye West are finally engaged!

The infamous "KUWTK" reality starlet just celebrated her 33rd birthday on Monday (October 21). And she had a LOT to celebrate that day... because Yeezy popped the big question, and she said yes!

Hairstylist Clyde Haygood posted a photo of Kim K's flashy engagement ring on Instagram with the caption, “Guess what just happened!!!! #kimye.” The bling is estimated to be around 15 carets.

Reports confirm that the "Yeezus" rapper rented out the AT&T Park baseball stadium (home of the San Francisco Giants) for the special occasion. All of KimYe's friends and family were there. BTW - it costs about $35,000 to rent out the stadium

An orchestra allegedly played Keri Hilson's "Knock You Down" and Lana Del Rey's "Young and Beautiful" (one of Kim's favorite songs) during the proposal... Hollywood publicist Tracy Nguyen posted a video of the grand production:

Following the proposal, Kim's sister Khloe tweeted:

@KhloeKardashian: "Wow!!!!! Am I dreaming??!?! Tears of JOY!!!!!!! Wow!!!!!!"

Congrats, KimYe! The couple welcomed baby daughter North West just this June. This will be West's first marriage. Kardashian was previously married to NBA player Kris Humphries and music producer Damon Thomas.