There are multiple artists using the name Gabrielle, Notably one from the UK and another from Norway -
These are videos from concerts where Gabrielle played, so they may be of other bands that played the concert as well.
News story and clips from the gig.
Michael Jackson / Kris Kross / Gabrielle / Jennifer Batten Jul 31, 1992 London, England, United Kingdom Added by Sable D
Full song FROM THE GIG THE DAY BEFORE but gives an indication of the energy of MJ and the crowd.
MTV clips
Audience Audio of full concert.
Short clips taken from a news report
A compilation video so how much, is from this specific date, if any, is unknown.