Demi Lovato has got her friend's back as she speaks out about warning Kanye West to treat Kim right.

Kim and Kanye recently became engaged and Lovato is more than happy for the duo but prior to the proposal the X-Factor judge claimed to have warned West not to hurt the Kardashian sister.

The 21 year-old joked to E!News, "I've told Kanye before that if he doesn't treat her well, I'm going to come after him."

Kanye proposed to Kim on her 33rd birthday (Oct 21st) in one of the most extravagant ways possible. He hired out San Francisco's Major League baseball stadium, hired an orchestra and wrote "will you marry me?" on the stadiums big screen.

Kim obviously said "Yes" and put the 15-carat diamond ring on her finger.

The 'Skyscraper' singer thought her friend deserved nothing less as Kim has helped her get through her emotional problems in the past, "I've known Kim for years and she's been such a good friend to me during some really hard times," the singer the gossip site.

"She deserves that Giants stadium! Thanks for telling me-now I can go congratulate her!"

Lovato entered treatment in 2010 for "emotional and physical issues" and the reality star apparently offered to help her in any way possible.

The former Disney actor told Billboard the following year, "I feel like there are some people that you're friends with that talk to you on Twitter or you text, but the people that are really there for me are the people that were there for me when I went into treatment. The people that were calling me while I was in there were Kim Kardashian and Selena Gomez. Those two girls, they meant the world to me. They still do."

Like Demi, we would like to offer our conratulations to the newly engaged couple.

demi lovato
Lovato warned Kanye to treat Kim right!

Kim Kardashian Kanye West
Kim and Kanye became engaged on Monday Oct 21st