As of my last update in early 2023, the specific lineup for the 2024 BET Awards, including whether Cardi B would perform, had not been announced. The BET Awards typically occur annually, usually in June, and the planning and announcement of performers for such events are usually made closer to the date of the awards show.

To find out if Cardi B performed at the 2024 BET Awards, you would need to check the latest announcements from the BET Awards official channels or recent news articles closer to the event date.