Australian rapper 360 has posted an emotional video to his Facebook page, revealing his struggles with drug addiction.

In the candid video , the Melbourne artist tells his story through a rap, opening up about the reasons behind the cancellation of his 2015 Utopia Tour, confessing he was admitted to hospital after overdosing on painkillers.

The tour was suddenly cancelled on January 16 last year, only half way through its four-week run.

Throughout the four-minute rap song 360 - born Matthew Colwell - admits he was taking up to 90 ibuprofen pills a day before increasing this to three packets of codeine tablets daily, and how he felt too ashamed to tell anybody about his problem.

“I should be dead,” he confessed.

“I already died twice.”

In the video, Colwell, 29, admitted he regrets not opening up to anyone about his problem, but said at the time he didn’t want to be “a burden”.

“No one knew my addiction, it was stupid as f---, 90 pills daily of Nurofen Plus,” he rapped in the video.

“That’s the thing with the codeine addiction - it’s over the counter so you don’t need a prescription.”

The rapper cancelled his tour unexpectedly in January 2015, now revealing he overdosed backstage before a show. (AAP)

Colwell said he realised his addiction was worsening while in the middle of the cancelled tour.

He opened up about his final day on tour before having to cancel his remaining shows, when he took four packets of pills “just to feel something”.

“My tour manager found me convulsing on the floor,” he said.

Colwell said the next thing he remembered was waking up in hospital being guarded, with no access to a mobile phone, before being told he was on suicide watch.

“I didn’t try to kill myself, but they wouldn’t believe me,” he said.

“I spent a month in a hospital bed living a nightmare.

“There are many times where I’ve wanted to be dead, but I thought ‘We’ve lost too many’ and I don’t want to be next.”

He made a heartfelt apology to his family and his fans and said he knew he’d disappointed them, but admitted he couldn’t have recovered without their support.

“I let my fans and my family down,” he said.

“I’m sorry to anyone who’s a fan of me, I understand if you wanted to abandon me.

“The battle with addiction is a battle on its own, the worst part is that I tried to battle it alone, so if you’re hearing this and you’re battling at home tell somebody because your family should know.”

Colwell ended the rap with a final message to his fans, promising them he is now happier and healthier.

“I’m loving life now, getting it back,” he said.

“I wouldn’t change a thing, because it made me who I am now.