Credit: Instagram

Orange is the new black breathtaking, as proven by Real Housewives of Beverly Hills star Yolanda Foster's stunning outfit over the weekend. Yowza!

Yolanda posted a pic of herself on Instagram just before heading out to Kyle Richards's daughter's bat mitzvah on September 7. "❤Up and running...... Going to meet my love @officialdfoster #SaturdayNightSelfie #getwise," she captioned the photo.

She also wrote this tweet:

Wow, Yolanda looks pretty darn amazing, dontcha think? Orange is definitely her color. And it's great that Yolanda is supporting Kyle and her family! 

We're even more impressed by how great Yolanda looks because she has been suffering from the affects of Lyme disease. Just before posting these photos, Yolanda had tweeted that she was having trouble getting out of bed, and she used the hashtag "#lymediseasestruggles."

Yolanda also appears to be referring to her health issues when she adds the "#mindovermatter" hashtag to her tweet about the bat mitzvah.

Meanwhile, Yolanda is rumored to have had issues with Lisa Vanderpump during filming for the show's upcoming season. The two reportedly got into a spat in Puerto Rico over Lisa trying to call out Mauricio for supposedly cheating on Kyle. Lisa has since unfollowed Yolanda on Twitter. We'll have to see what happened when the episodes air!

Meanwhile, we're wishing Yolanda all the best in her fight with Lyme disease.

Source: Twitter, Instagram

Ryan Gajewski is a writer at Wetpaint Entertainment. Follow him Google+!