Jack Harlow Low Key Reacts to Brandy?

This week Brandy Norwood followed through on her threat to 'murk Jack Harlow on his own beats' after he failed to recognize her voice on a song and didn't know Ray J was her brother [click here if you missed that]. 

Did Jack just respond...? 

Sure looks like it. 

Last night Jack Harlow showed his critics that he's brushing up on his classic R&B and Hip Hop after sharing a picture of himself wearing headphones intently listening to Jakakiss 'You Make Me Wanna' ft. Mariah Carey.