Ozzy Osbourne has had to cancel his 2019 UK and European tour on doctor's orders after being struck down with a bad case of flu.

Ozzy Osbourne

Ozzy Osbourne

The 70-year-old heavy metal legend has had to pull out of 15 dates on his 'No More Tours 2' - due to kick off on Wednesday (30.01.19) at the 3Arena in Dublin, Ireland - as he is too ill to step on stage.

A statement posted on his official Instagram account read: "OZZY has been forced to postpone the entire UK and European leg of his NO MORE TOURS 2 tour on doctors' orders.

"This follows yesterday's announcement that OSBOURNE was postponing the first four dates of the tour because of the flu.

"After seeing his physician again, OSBOURNE has been diagnosed with a severe upper-respiratory infection which the doctor feels could develop into pneumonia given the physicality of the live performances and an extensive travel schedule throughout Europe in harsh winter conditions."

Ozzy - who is married to Sharon Osbourne - is "completely devastated" to have to let his fans down but has vowed to make it up to them when he heads out on the road for the rescheduled dates.

In the statement, the 'Bark at the Moon' singer said: "I'm completely devastated for having to postpone the European leg of my tour. It just seems that since October everything I touch has turned to s**t. First the staph infection in my thumb and now coming down with the flu and bronchitis. I want to apologise to all of my fans who have been so loyal over the years, my band, my crew and to Judas Priest for letting you all down. However, I promise the tour with Judas Priest will be completed. It's being rescheduled right now to start in September. Again, I apologise to everyone. God Bless. Love you all, Ozzy."

Once he has recuperated Ozzy will resume touring on March 9 at Download Festival in Sydney, Australia.

Ozzy Osbourne 'No More Tours 2' list of postponed concerts:

Wed, January 30 - Ireland, Dublin - 3Arena

Fri, February 1 - UK, Nottingham - Motorpoint Arena

Sun, February 3 - UK, Manchester - Manchester Arena

Tue, February 5 - UK, Newcastle - Metro Radio Arena

Thu, February 7 - UK, Glasgow - The SSE Hydro

Sat, February 9 - UK, Birmingham - Genting Arena

Mon, February 11 - UK, London - The O2, Arena

Wed, February 13 - Germany, Munich - Olympiahalle

Fri, February 15 - Germany, Frankfurt - Festhalle

Sun, February 17 - Germany, Hamburg - Barclaycard Arena

Tue, February 19 - Germany, Berlin - Mercedes-Benz Arena

Fri, February 22 - Sweden, Stockholm - Ericcson Globe

Sun, February 24 - Finland, Helsinki - Hartwall Arena

Wed, February 27 - Switzerland, Zurich - Hallenstadion

Fri, March 1 - Italy, Bologna - Unipol Arena

Sun, March 3 - Spain, Barcelona - Palau Sant Jordi