Max George shared a sweet Instagram post wishing his mother Barbara a happy birthday on Thursday, while he prepares for open heart surgery in hospital.
The Wanted singer, 36, revealed last week he was spending Christmas in hospital after being forced to seek medical help after having an undiagnosed heart condition.
After doctors ran further tests, Max revealed he will need to fitted with a pacemaker - a device that stops the heart from beating too slowly after they found an issue with the 'bottom part of his heart'.
Shortly after the singer's health scare was revealed, his mother told MailOnline: 'We are beside ourselves, but we are keeping our fingers crossed'.
And now, in an emotional post for her birthday, he wrote: 'Happy birthday mum!! I don't know what I'd do without you. Love you MTTW. Max xxx.'
He added a family snap of himself and his mum posed with his girlfriend Maisie Smith, 23, and older brother Jack.
Max George shared a sweet Instagram post wishing his mother Barbara a happy birthday on Thursday, while he prepares for open heart surgery in hospital
The Wanted singer, 36, revealed last week he was spending Christmas in hospital after being forced to seek medical help after having an undiagnosed heart condition
Speaking outside her home in Swinton last week, Barbara told MailOnline: 'Max is in the hospital right now and he's being very well taken care of.
'I took him to A&E this week where he was looked at. He is in the best place he can possibly be right now.
'He's very grateful for all the well-wishes from his fans and he's got all his friends and family around him too.'
It comes after Max begged his heart monitor to increase before it appeared to switch off as he shared a new video from his hospital bed on Sunday.
He shared a new video of himself lying in bed while watching his heart rate hand-sized monitor move from 35 to 34 to 38 before he wagged his finger begging, 'go up!'
The number then dropped to 37 and the star suggested he is looking for some excitement to help his heart rate increase.
He penned: 'Come on @mancity.. Sort me out will ya?!!'
However, the device then appeared to switch itself off, leaving Max to exhale, 'Brilliant'.
Talking about his pacemaker and pointing to his chest, he said: 'So latest is that 100 per cent I'm going to have a little friend put in here at some point.
Speaking outside her home in Swinton last week, Barbara told MailOnline: 'Max is in the hospital right now and he's being very well taken care of'
It comes after Max revealed he will undergo open heart surgery to have a pacemaker fitted
It comes after Max begged his heart monitor to increase before it appeared to switch off as he shared a new video from his hospital bed on Sunday
'Erm, I've got an issue with the bottom part of my heart, it's called a block. The tricky bit is what I have put in because until I have further tests we don't know what caused it.'
The Glad You Came hitmaker noted it is all a 'mystery' what has happened to him, although doctors have been able to eliminate some possible causes.
Max, who has battled alcoholism previously, said: 'We've cancelled out a few things, like alcohol for example I've not had a drink for four-and-a-half years so it's not that.
'It's a bit of a mystery really, but that's the hard bit. It's the waiting. My heart rate is really, really low. They're monitoring it 24/7, everyone has been amazing.
'But the waiting bit is tough. It's just one of them things unfortunately. Whatever I get, I've got to get on with it. We're hoping pacemaker, a pacemaker is good.'
Last week, the singer shared he had had a 'rough day' in hospital. He said: 'I've had a bit of a rough day today.
'My heart rate dropped this morning, which was a little bit scary. But everyone here's amazing and they managed to get it back up a little bit and get it stable again, which is great.
'A lot of friends and family are asking why I'm not just going in and having anything done yet, but there's so many tests that need to be done before we do anything.'
The singer admitted he is 'very lucky that this was caught when it was' as he shared the shocking health update from hospital, showing a heart monitor across his chest
The Wanted stars Siva Kaneswaran, Nathan Sykes, Tom Parker - who passed away in March 2022 - Max and Jay McGuiness pictured in 2021
WHAT IS A PACEMAKER?
A pacemaker is a small, battery-powered device that prevents the heart from beating too slowly.
Surgery is needed to install it and the operation is generally carried out under local anaesthetic
Around 50,000 people are fitted with a pacemaker every year in the UK, according to the British Heart Foundation
'I just need to get through to next week and have all the tests done, then they'll know exactly what to do.'
Max concluded his message by noting he is determined to stay positive amid the ordeal.
He said: 'Obviously they'll be able to do something but it'll be better doing it with all the information they need. But year, it's s**** But still here and staying positive.'
In his initial post to Instagram, Max revealed he will be spending Christmas in hospital.
He wrote on Instagram: 'Yesterday I felt really unwell and was taken in to hospital. Unfortunately after some tests they've found that I have some issues with my heart.
'I have a lot more tests to determine the extent of the problems and what surgery I will need to get me back on my feet.
'It's gonna be a difficult few weeks / months… and Christmas in a hospital bed wasn't exactly what I had planned!
'But, as always, I'm surrounded with love and support from my wonderful partner Maisie, her family, my family and friends.. and I'm 100% in the best place.
'Although this is a huge shock and no doubt a set back, it's something I'll take on with all I've got! I count myself very lucky that this was caught when it was.
'Apologies if I bore you with updates in the coming weeks..I've probably got a month in a bed and there's not THAT much to do!'