Green Day are set to go back on the road after lead singer Billie Joe Armstrong leaves a rehabilitation centre after addressing substance abuse problems.

In a statement released by the band, Armstrong (40) says 'I just want to thank you all for the love and support you've shown for the past few months'.

'Believe me, it hasn't gone unnoticed', the statement continues: 'I'm eternally grateful to have such an amazing set of friends and family. I'm getting better every day. So now, without further ado, the show must go on.'

The band will now embark upon a North American tour in March, beginning in Chicago and will announce new and rescheduled tour dates later in the year.

'We want to thank everyone for hanging in with us for the last few months,' the band said. 'We are very excited to hit the road and see all of you again, though we regret having to cancel more shows', the band concluded.

Green Day's latest album, Tre, was released in December, a month ahead of schedule.