Here's some scary news that definitely does not rule.

Real Housewives of Beverly Hills and Vanderpump Rules star Lisa Vanderpump fainted this week during a rehearsal for Dancing with the Stars, according to Entertainment Weekly.

It has not yet been revealed what exactly caused her to faint.

Meanwhile, sources say it is unclear whether Lisa will continue to compete on the show.

Beginning on April 7, ABC promos for the show will tease Lisa's on-set emergency.

The 52-year-old reality star and partner Gleb Savchenko didn't give a stellar performance last week, but it was strong enough to avoid landing in the bottom two.

If Lisa had to duck out of the competition early, it would be tough not only for her but also for her many fans and supporters.

Last week, fellow Housewives Brandi GlanvilleKyle Richards, and Taylor Armstrong were all in the audience to cheer on Lisa's fancy footwork.

Also, Vanderpump Rules star Kristen Doute recently revealed to Wetpaint Entertainment that she and her fellow VR castmates gather around the TV every week for a we all get together and watch her viewing party to cheer Lisa on. 

"We all get together and watch her," Kristen tells us.

We're wishing Lisa a speedy recovery and hope she'll be back to impressing us all on the dance floor in no time!

Source: Entertainment Weekly