As you've no doubt heard by now, the deadliest mass shooting in American history occurred in Las Vegas last night.
Tens of thousands of famous figures have responded to the tragedy on social media, with most offering thoughts and prayers, and many calling for stricter gun control laws.
Cast members from Bravo's wildly popular Real Housewives franchise were quick to share their thoughts on social media, and we've collected the most memorable posts in the gallery below:
Real Housewives of Beverly Hills star Lisa Vanderpump called the shooting an "absolute nightmare and devastating tragedy."
Lisa's former co-star Brandi Glanville shared this heartfelt response to the attacks.
Real Housewives of New Jersey star Teresa Giudice called for thoughts and prayers for the victims.
Vicki Gunvalson of The Real Housewives of Orange County tweeted that she was "devastated" by news of the shooting.
Real Housewives of New York City star Bethenny Frankel bluntly assessed the situation while volunteering in hurricane-ravaged Puerto Rico.
Real Housewives of Atlanta star Phaedra Parks bemoaned a world where Americans can't peacefully enjoy a concert.