Cardi B and Migos rapper Offset are engaged.

In a video on Twitter, the 25-year-old is seen dropping to one knee as fans scream wildly at the Power 99's Powerhouse concert in Philadelphia on Friday (27Oct17).

The rapper, real name Kiari Kendrell Cephus, popped the question to his Bodak Yellow hitmaker girlfriend on stage, and Cardi B could hardly contain her surprise and gestured wildly as Offset held the ring out to her.

Despite the crowd's roars and cheers, she appeared to say yes and the rapper placed the huge eight-carat pear-shaped diamond ring on her finger.

Offset shared a video of the engagement on his Instagram story shortly after their set, and captioned it: "She said yes."

Cardi B also shared a photo of herself holding up the ring in a snap on Instagram, and thanked the rapper for asking her to marry him. "Jesus Christ I’m so emotional, @offsetyrn I loveee (sic) you so much," she wrote. "Thank you for seeing the potential in me since you met me. For giving me advice molding (sic) me and loving me. Your such a amazing man to me your family, friends, kids and you are extremely talented. I can’t wait to spend FOREVAAAA with you .Lets make a lot shmoney (sic) and love together."

Offset's Migos bandmate, Quavo, shared a photo of the couple onstage as the proposal was taking place, and jokingly captioned the shot: "P L A Y E R S C A R D T U R N E D I N C O N G R A T S @offsetyrn @iamcardib.”

The couple began dating earlier this year (17).