Robbie Williams has called marijuana a “lovely drug”, but admitted it doesn't agree with him.

The singer spoke about the substance when asked in a magazine interview about his tendency to binge-eat after taking the drug.

"Did you see me last year? Have a look at last year. Yep. Year of the Munchie 2009,” he told the Radio Times.

"Weed, it's such a lovely drug. It is such a lovely drug. But it doesn't mix well with me - at all."

The former Take That star also claimed that he was “dying” ahead of his most recent trip to rehab three years ago.

“I got to the point where I really, genuinely didn't care,“ he said. “I'd just got fat and depressed before.

“Then this one was like, 'you might die'."

Meanwhile, Williams' new single 'Morning Sun' was released on Monday (March 8).

The track is the official song for this year's Sport Relief campaign.

(by Jason Gregory)