Robbie Williams plans tour before 2012

British pop star Robbie Williams, who has admitted in the past that touring always takes a toll on his mental health and vowed never to go back on the road, has announced he'll be going on a tour.

The singer's 2006 Close Encounters tour saw him cancel a string of dates in Asia due to exhaustion.

The tour ended with a stint in rehab for the singer, who checked into a clinic in Arizona to help deal with his prescription drug habit.

He said at that time: "I cannot imagine touring in the near future. I've smashed my head against a wall too many times and I know it's harder than I am.

"I felt great when I started to promote a record but it soon began to kill me. I felt worse when on tour. I suffered a nervous breakdown and checked into rehab."

However, Williams told the audience at a gig in London that he is planning another set of live shows.

"I will be going on tour. That will be happening. When, where, I don't know. But it will be happening. Definitely before 2012," the Daily Express quoted him as saying.