British soul singer Seal expressed his apology on Twitter for his outburst on the micro-blogging site during the media coverage of the raid on the hotel room of his fellow coach and Good Charlotte front-man Joel Madden.

"I want to apologise for my rant earlier. Joel is one of my best friends and I was really hurting for him," Seal tweeted, according to The Australian on Wednesday.

Seal, who also served as a coach for the Aussie Voice, was angry for what he called a plot by the management of the Star casino and hotel to indict Madden for possession of illegal drugs.

Madden was caught in possession of a small stash of marijuana after the police raided Madden's penthouse room.

Seal said Madden was supposed to meet a cancer patient, but the hotel's management trapped him into a ploy, sending police to his friend's room and putting him in complete humiliation in the eyes of the Australian media.

Shame one (sic) the Star...you ask him to meet n greet a cancer victim in your hotel then send police to his room?? Nice very classy..keep it up Judas. I'm done here. can't wait to go home," posted by Seal on his Twitter account at the peak of the media coverage on Madden's arrest.

Seal immediately deleted his previous message and posted his apology on his Twitter account.

"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. It's been almost 11 weeks away from my kids and me saying "I can't wait to go home" was me missing being home with them," Seal posted.

The 34-year-old Madden immediately admitted possession of marijuana, expressing his regret for letting his fans down.

The Aussie Voice is the highest-rating television program in Australia, garnering around 1.75 million in Monday night's semifinal. The final is scheduled next Monday.