Kanye West's proposal to Kim Kardashian was a total production — in the best possible way. "It was so amazing. Guys were in tears!" a source tells Us Weekly of West, 36, who surprised Kardashian on her 33rd birthday on Monday by rounding up family and loved ones at San Francisco's AT&T Stadium, where the JumboTron read "PLEEEASE MARRY MEEE!"" as the rapper held out a sizable Lorraine Schwartz ring.
"It was magical," adds a second source to Us. "It was the most romantic thing ever — the ultimate surprise!"
The details-obsessed rapper and designer "personally invited everybody" several days ago, the first source continues, with about 50 total on hand, including about 20 of Kardashian's relatives and pals, West's hometown friends from Chicago, plus the owners of the San Francisco Giants and several "Silicon Valley billionaires." Every attendee was sworn to secrecy, the source adds.
Kardashian's loved ones — including mom Kris Jenner, sisters Kourtney and Khloe Kardashian, Kylie and Kendall Jenner, pals Jonathan Cheban, Robin Antin, Joe Francis and others — hid in a dugout in the stadium as they waited for Kim to arrive. With the exception of momager Jenner, 57, "nobody was told he'd be proposing in advance," the first pal points out — not even Khloe or Kourtney.
As West and Kardashian arrived via chauffeured car, "all of the lights were off at the stadium," the source says.
Blindfolded, Kim emerged with West at her side. "It was completely dark. Kim had no idea that any of her friends and family were there," the same insider says. Orchestral music began, the sign was alit. West "got down on one knee and the lights came on. It was perfectly choreographed. It was incredible!"
After the lights went up, her friends and family (many of them in tears) emerged from the dugout, running onto the field to give their congrats. Caterers quickly emerged as well to set up a yummy spread of sushi and more.
The second insider adds that the bride-to-be was "freaking out but beaming and showing off the ring to everyone after."
After all, earlier in the day, her family and friends never let on about any plans whatsoever in San Francisco. "Everybody had a story. All of the girls said they were in Arizona at a spa with their mom. That was a ruse," the first source says. "That was in order to throw Kim off – just to surprise her later. It was a complete secret. The coolest thing ever!"
(Baby North West was in San Francisco, but not at the stadium for the proposal.)
"This was totally real and she's definitely in love and so happy," the second pal gushes. "It was one of those fairytale moments."
Sign up now for the Us Weekly newsletter to get breaking celebrity news, hot pics and more delivered straight to your inbox!