An NYPD officer grabbed the "Bodak Yellow" rapper with "his arms around her neck," according to TMZ.
Each artist scored nine nominations for the October 10 awards show.
Dizzee Rascal, Stefflon Don, and Bugzy Malone will also appear at Who We Be Live.
The Bronx rapper plans on releasing her debut album in October.
The Bronx rapper will perform her breakout single "Bodak Yellow."
After debuting the new version at the Dominican Day Parade, Cardi made the track available in full.
Luis Fonsi and Daddy Yankee's "Despacito" has tied for the second longest streak at No. 1.
Nicki Minaj's "Anaconda" reached the No. 2 spot three years ago.
Cardi B announced that she had signed a deal with Atlantic Records in her cover story for The FADER's Summer Music Issue.
Cardi B's FADER cover story explains how she engineered Instagram fame into reality TV stardom into a poppin’ rap career.