Favre, as well as fellow Cameo-curious celebs Soulja Boy and Andy Dick, all got tricked into lending their support to a cabal of antisemites. They agreed to read seemingly innocuous phrases that were actually coded messages designed to tickle the fancies of any white supremacists who happened to be listening. Here's an example, using what Favre was paid to say:
"Brett Favre here with a shout out to the Handsome Truth and the GDL boys. You guys are patriots in my eyes. So keep waking them up and don't let the small get you down. Keep fighting, too, and don't ever forget the USS Liberty and the men and women who died on that day. God bless and take care."
"Waking them up" means indoctrinating people into hating Jews, "small" references small hats (as in yarmulkes), and "USS Liberty" refers to a conspiracy theory that blames Israel for an attack on an American ship during the Six-Day War. To his credit, Favre apologized profusely once it came to his attention that he had unwittingly channeled the ghost of Goebbels.
Flavor Flav, meanwhile, got duped into giving a "happy retirement" message to George Pell, adding, "All of the boys on the choir respected you, you know what I'm saying!" If that name rings a bell, it's because Pell was a high-ranking Australian cardinal who was sentenced to six years in prison for sexually abusing minors. So if you're a celebrity who's aware of Cameo, take a couple of extra seconds and also acquaint yourself with the website "Google."