Beyoncé and Mariah Carey attended a benefit for the HeartView Global Foundation at the Skirball Cultural Center in Los Angeles, Calif. on Thursday to honor Troy Carter, and posed for a picture together. Carey took to Instagram to post a photo of she and Queen Bey, alongside the caption, ?Two girls, one cause.? Let?s just say it?s almost too much to handle. The newly-engaged diva was spotted wearing her enormous ring, while Beyoncé was glowing in an all-white ensemble. The event comes after the ?Formation? singer absolutely slayed her Super Bowl performance and announced her world tour.