Rolling Stones frontman Mick Jagger has broken his silence for the first time since reportedly having heart surgery following the postponement of the band’s North American tour.

Jagger, 75, took to Twitter to say he’s “on the mend” and thanked the hospital staff for doing a “superb job”.

While the singer’s US representative gave no details on the surgery, Fran Curtis issued a statement on Saturday (AEDT) to say he was “doing very well” after undergoing “treatment”.

“Mick Jagger has successfully undergone treatment. He is doing very well and is expected to make a full recovery,” the statement read.

Thank you everyone for all your messages of support, I’m feeling much better now and on the mend – and also a huge thank you to all the hospital staff for doing a superb job.

— Mick Jagger (@MickJagger) April 5, 2019

Billboard magazine and other publications said the surgery involved the replacement of a heart valve.
 The New York Post, citing unidentified sources, said the surgery would involve placing a stent in the singer’s heart. Rolling Stone magazine also said it had confirmed Jagger’s looming surgery.

Last week the band announced it was postponing all dates on its tour of the US and Canada to give Jagger time to receive medical treatment. It did not specify what treatment Jagger needed.

“Mick has been advised by doctors that he cannot go on tour at this time, as he needs medical treatment,” the band said on its website.

“The doctors have advised Mick that he is expected to make a complete recovery so that he can get back on stage as soon as possible.”

Billboard, citing unnamed sources, said doctors were able to access the valve through his femoral artery and were monitoring the 75-year-old singer for any complications.

Described by Billboard as transcatheter aortic valve replacement, or TAVR, is an increasingly widely-used alternative to surgical valve replacement that requires the chest to be opened. TAVR typically allows for shorter hospital stays and quicker recovery times.

Jagger announced on Twitter last Saturday the band was postponing a tour of the US and Canada to give him time to recover from medical treatment.

“I’m devastated for having to postpone the tour but I will be working very hard to be back on stage as soon as I can,” Jagger said at the time.

A big disappointment for everyone but things need to be taken care of and we will see you soon. Mick, we are always there for you!

— Keith Richards (@officialKeef) March 30, 2019

Ronnie Wood also tweeted his support, “We’ll miss you over the next few weeks, but we’re looking forward to seeing you all again very soon. Here’s to Mick – thanks for your supportive messages, it means so much to us.”

Despite his apparent health concerns, Jagger was photographed on Sunday in Miami Beach, Florida, on the beach with his girlfriend, ballet dancer Melanie Hamrick, their young son, and daughter Georgia May, one of his seven adult children.

The British singer has not explained his medical issue but told fans in a tweet on Saturday that he would be “working very hard to be back on stage as soon as I can”.

After a storied sex, drugs and rock’n’roll lifestyle in his earlier days, Jagger follows a healthy diet, runs, and works out frequently.

The North American tour had been scheduled to run from April 20 until June 29. The Rolling Stones are yet to release dates for any Australian tour

-with AAP