Hmmm, well I listened as hard as I possibly could. It sounded like Brian said "wrong" like "something wrong?" referring to the audience and why Freddie felt he needed to say what he did. I don't know what Freddie said to him after that. It sounded like Spanish to me, lol.
He said that and something else, which I thought was Spanish, lol. Sorry I'm not much help :( But this is gonna bother me now, so I'll get back to the mystery later.