While many celebs were attending Kanye West's fashion show and album reveal in New York, Yeezy's friend Beyonce was glamming it up with Mariah Carey at the HeartView Global Foundation benefit in LA.
The gal pals were positively glowing in a photo Mariah posted to Twitter, who tweeted, "Two girls, one cause."
Bey slayed in a white gown adorned with a shoulder-hugging cape and Mariah rocked a nude-colored, sparkly lace dress that flaunted her famous curves.
And yes, you can catch a glimpse of Mariah's much-talked about 35 carat engagement ring, which may or may not have required its own seat at the benefit.
Both ladies have had quite the year so far.
Beyonce made many a headline early in the week when she basically won the Super Bowl with her jaw-dropping halftime performance of "Formation" (even though a few bellyachers had to be total sour pusses about it).
Three weeks ago, Mariah got engaged to billionaire James Packer, who presented her with the aforementioned diamond boulder that's likely giving her left bicep muscles a killer workout.
The HeartView Global Foundation aims to combat heart disease by promoting a heart-healthy, plant-based diet. Both Beyonce and Mariah have followed vegetarian/vegan diets in the past.