Demi Lovato Kanye West Warning: Treat Kim K. Right Or Else

Demi Lovato voiced her reaction to Kim Kardashian's recent proposal from Kanye West.

The 36-year-old rapper organized a lavish proposal to Kardashian on the reality star's birthday, Oct. 22, at San Francisco's AT&T Park, to which she delightedly said yes.

Commending West's over-the-top proposal, Lovato said her friend Kardashian deserved all of it and more while speaking to E! News.

"Of course he did," the singer said of West's immodest proposal. "I've told Kanye before that if he doesn't treat her well, I'm going to come after him!"

Furthermore, Lovato explained her friendship with Kardashian.

"I've known Kim for years and she's been such a good friend to me during some really hard times," the "X-Factor" judge explained. "She deserves that Giants stadium! Thanks for telling me- now I can go congratulate her!"

Fortunately for West, there will be no need for Lovato to "come after him." Kardashian described her happiness following her engagement on Oct. 23.

"I'm the luckiest girl in the world," she 33-year-old bride-to-be told E! News. "I get to marry my best friend!"

Meanwhile, details of West's proposal included flying other members of the Kardashian family to the site and renting out the baseball stadium, all before putting "Pleeease Marry Meee!!!" on the jumbotron and presenting Kardashian with an enormous 15-carat diamond ring.

Additionally, a 50-piece orchestra played Lana Del Rey's "Young and Beautiful" followed by Ker Hilson, Ne-Yo and Kanye's "Knock You Down" before fireworks and Roman candles exploded in the sky.

Kardashian and West's engagement arrives after over a year of dating, and four months after the pair welcomed their daughter North West on June 15.

Among those family members and friends present for the surprise proposal was Kardashian's sister Khloe who tweeted, "Wow!!! Am I dreaming??!?! Tears of JOY!!! WOW!!!!"

Kardashian's mother Kris Jenner later posted that she is "so happy for both of my kids, Kim and Kanye."