Let the extravagant wedding planning begin.

Kim Kardashian and Kanye West are now engaged, according to E! News, the network that airs Kardashian's reality show. West popped the question Monday, Kardashian's 33rd birthday.

Kardashian's old engagement ring reportedly fetches $749,000
The reality star and new mom confirmed the news on her Instagram account Tuesday, offering fans a close-up view of her sparkler in a photo captioned, "YES!!!"

Kimmel and Kanye clear the air
Racy magazine cover features Kim, Kanye
Naturally, the "Yeezus" rapper couldn't propose just anywhere -- he rented out the stadium where the San Francisco Giants play.

The couple's friends and family were on hand for the event, which was topped off by fireworks and a 50-piece orchestra, E! said. Kardashian got a 15-carat Lorraine Schwartz ring.

Kardashian matriarch and self-proclaimed "momager" Kris Jenner gushed about the engagement.

"A match made in heaven!" she told the network. "I am so happy for both of my kids, Kim and Kanye."