Seal, known for his hits "Crazy" and "Kiss From a Rose", later blamed being away from his children for 11 weeks for the outburst which ended with him saying: "Can't wait to go home". "I want to apologise for my rant earlier. Joel is one of my best friends and I was really hurting for him," the backtracking star, formerly married to supermodel Heidi Klum, said on Twitter. "I want to say I have loved being in Australia, I've loved working on The Voice and with an incredibly talented group of Australian artists." As well as Seal and Madden, Australian singer Delta Goodrem and Puerto Rican superstar Ricky Martin are on the television show's judging panel.