Mick Jagger, 75, looks delighted as he returns to the stage for Rolling Stones rehearsals in Chicago

He has returned to tour life after undergoing heart surgery in April.

And Mick Jagger looked delighted to be back on the road, as he shared snaps from the Rolling Stones’ rehearsals in Chicago’s Soldier Field on Thursday.

The music legend, 75, gazed adoringly at the stadium in front of him, seats which would soon be filled, and looked happy and healthy ahead of the band’s show at the venue on Friday. 

He’s back! Mick Jagger, 75, looked delighted as he returned to the stage during rehearsals for Rolling Stones show in Chicago on Thursday… after singer underwent heart surgery

Teasing his return with fans, Mick wrote in the photo’s caption: ‘Looking forward to seeing you all tomorrow!’

Mick also gave fans a glimpse into his soundcheck, as he walked around the set with his guitar in hand, and strumming notes on the instrument as he did so.

The singer kept things casual for the band’s outing on stage, as he shrugged on a grey hoodie over a black baseball cap and blue Chinos.

Moves like Jagger: Mick also gave fans a glimpse into his soundcheck, as he walked around the set with his guitar in hand, and strumming notes on the instrument as he did so

Moves like Jagger: Mick also gave fans a glimpse into his soundcheck, as he walked around the set with his guitar in hand, and strumming notes on the instrument as he did so

Mick’s appearance comes after he threw himself back into tour rehearsals for the band’s North American shows which were postponed to give the legendary singer time to focus on his recovery.

A source told The Sun: ‘Mick is delighted to be back to full health and feels 100 per cent after his op. He is his normal chipper and positive self.

‘Doctors are really pleased with his progress and were happy to give him a clean bill of health.

‘His healthy eating has really helped with his recovery and he’s been taking it easy and resting, as well as enjoying down time with his friends and family. The health scare has just reminded him to keep taking good care of himself.’

Excited: Teasing his return with fans, Mick wrote in the photo's caption: 'Looking forward to seeing you all tomorrow!'

Comfy: The singer kept things casual for the band's outing on stage, as he shrugged on a grey hoodie over a black baseball cap and blue Chinos

Excited: Teasing his return with fans, Mick wrote in the photo’s caption: ‘Looking forward to seeing you all tomorrow!’

Looking forward to it: Mick shared a picture with fans as he made his way to rehearsals

Looking forward to it: Mick shared a picture with fans as he made his way to rehearsals

Mick had heart valve replacement surgery using a technique pioneered by Professor Alain Cribier.

His surgery method, transcatherter aortic valve replacement, or TAVR, allows surgeons to swap a patient’s cardiac valves without resorting to open heart surgery and cracking open their chests. As a result, recovery times are far quicker.

The most common — and serious — of valve diseases, age-related aortic stenosis occurs when the valve narrows and hardens with calcium deposits.

Valve replacement has historically been done by opening the chest surgically, stopping the heart, and placing the patient on a heart and lung blood machine – all, of course, under general anaesthesia.

Looking after himself: Mick has thrown himself back into tour rehearsals for the band's North American shows, which were postponed to give the singer time to focus on his recovery

Looking after himself: Mick has thrown himself back into tour rehearsals for the band’s North American shows, which were postponed to give the singer time to focus on his recovery

Health comes first: Mick had heart valve replacement surgery using a technique pioneered by Professor Alain Cribier

Health comes first: Mick had heart valve replacement surgery using a technique pioneered by Professor Alain Cribier

More than 200,000 such procedures are performed every year worldwide, according to NewHeartValve, in Britain.

Cribier’s technique, done under local anaesthesia, is minimally invasive by comparison and has far shorter recovery times.

A surgeon or cardiologist accesses the femoral artery with an incision near the groin to insert a catheter fitted with a replacement valve inside a collapsed stent, and a balloon for inflating it.

The new heart valve, once expanded, pushes the old one out of the way and takes over the job of regulating blood flow. ‘It has revolutionised patient care in this area,’ Montpellier-based cardiologist Stephane Cade told AFP.

Back on track: A source told The Sun: 'Mick is delighted to be back to full health and feels 100 per cent after his op. He is his normal chipper and positive self'

Back on track: A source told The Sun: ‘Mick is delighted to be back to full health and feels 100 per cent after his op. He is his normal chipper and positive self’

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