Rapper Cardi B in hospital with 'medical emergency'

Cardi B says she is in hospital with a medical emergency and will have to miss a headlining performance at an Atlanta, Georgia music festival.

"I am so sad to share this news, but I've been in the hospital recovering from a medical emergency the last couple of days and I won't be able to perform at ONE MusicFest," the Grammy-winning rapper wrote on Instagram.

"It breaks my heart that I wont get to see my fans this weekend."

She added, "I'll be back better and stronger soon. Don't Worry."

The 32-year-old New York native gave no details on her condition.

Cardi gave birth to her third child with rapper Offset less than two months ago. The two are going through a divorce.

She was to have performed along with Earth, Wind & Fire, Nelly, Gunna and GloRilla at the two-day ONE Music Fest.