Rod Stewart has revealed he's undergone heart surgery and will take four weeks off after being forced to cancel his shows.The Scottish rocker, 81, sparked fresh health fears just the day before after cancelling another concert due to a mystery medical issue.It has now been confirmed that he underwent 'a routine coronary stent procedure,' which is an operation that opens blocked heart arteries using a catheter.Sharing the news on his Instagram account, the statement read: 'Following further medical evaluation, Sir Rod Stewart has successfully undergone a routine coronary stent procedure.'Doctors are pleased with his recovery, and Rod is doing very well and has returned to his normal daily activities. 'On the advice of his doctors, he will take the next four weeks to recuperate and regain full fitness before returning to the stage. Unfortunately, this means he will be unable to continue his current tour dates. Rod Stewart has revealed he's undergone heart surgery and will take four weeks off after being forced to cancel his shows (pictured in April) It has now been confirmed that he underwent 'a routine coronary stent procedure,' which is a operation that opens blocked heart arteries using a catheter His representatives said doctors are pleased with his recovery'Information regarding affected performances will be communicated by the respective promoters and venues.' A comment by the Maggie May singer said: 'I'm already feeling better and very much on the mend. I want to thank the doctors, nurses and everyone who has taken such wonderful care of me.'I'm deeply disappointed to miss these shows and sorry to let my fans down, but I look forward to getting back on stage and having a good time with you all again soon. Rod.'The rocker, who cancelled a string of gigs due to health setbacks earlier this year, pulled out of his August 9 gig at the Riverbend Music Center in Cincinnati due to undergoing an 'unforeseen but minor medical procedure', organizers confirmed.The venue shared a statement which read, 'Due to an unforeseen but minor medical procedure that required prompt attention, Rod Stewart's performance tonight in Cincinnati has been postponed.'Rescheduling is currently underway, with additional information to follow on Tuesday. All previously purchased tickets will be honored for the rescheduled date.'Rod is expected to make a quick recovery and looks forward to returning to Cincinnati.' The Daily Mail contacted representatives for Rod for comment and has yet to hear back. The Scottish rocker sparked fresh health fears just the day before after cancelling another concert due to a mystery medical issue - pictured in June Rod pictured with his wife Lady Penny Lancaster in January Rob sparked concern when he was forced to pull out of a concert in California in June, citing a respiratory infection that had spiraled into laryngitis.A week later, he paused his concert in Utah and used an oxygen tank on stage. This could have been due to the altitude. He also postponed his shows at Red Rocks Park and Amphitheatre in Morrison, Colorado in June, citing vocal rest. Rod later addressed the fan uproar around his decision to attend Scotland's World Cup match, less than 24 hours after he cancelled his California show due to ill health. He was pictured cheering on the Tartan Army during their first World Cup match against Haiti in Boston, leading to huge backlash online.He said: 'No, I got an awful... I really shouldn't have gone to the Haiti game. You know, I had to cancel a show the night before because I just had no voice left.'Speaking to Jim White on talkSPORT, the hitmaker added: 'But the truth is, Jim, I wasn't going to let my two sons down.'I promised them since they were born that we were going to go to a World Cup. And this is the first one that's come about. 'And it wasn't a good look, I admit, but I'm going to have to just take the stick. So I did it for the boys.'The octogenarian musical legend is currently on the North American leg of his farewell tour One Last Time, which he launched in 2024.'I've got 40-odd shows this year and that's not really a lot,' he said. 'And I'm touring the UK next year and doing the O2 and that will probably be it, I think.'