Asked to appear on the Australian variety hour  Hey Hey It’s Saturday as a guest judge, Harry Connick Jr. sputters in disbelief when a Jackson 5 impersonation group entirely in blackface appears onstage. He first gives the group a 0 scorecard for the performance while the audience boos; later, at about 4:40 into the clip, Connick launches into an impassioned race-relations lecture explaining why blackface is a bad thing. “If I knew that was going to be a part of the show, I definitely wouldn’t have done it,” Connick declares on live TV.  The host appears genuinely surprised.