Rolling Stones Mick Jagger, right, and Keith Richards. (Photo by Sven Creutzmann/Mambo Photo/Getty Images)

Chris Jagger, the younger brother of Rolling Stones legend Mick Jagger, said his brother was doing "okay" after undergoing emergency heart valve replacement surgery last week in New York City and, he added, "at least he [Mick Jagger] has not got to wait in line for the NHS," the government-run National Health Service in Britain.

Sir Michael "Mick" Jagger, 75, is the frontman for the Rolling Stones, considered one of the greatest rock-and-roll bands in history.

Over the weekend of March 30, during a routine health examination as part of the band's insurance for a tour, doctors discovered the problem with one of Jagger's heart valves. He was quickly scheduled for surgery last week in New York City and is now recovering.

The Rolling Stones: Mick Jagger, Charlie Watts, Keith Richards, Ron Wood. (Photo by Sven Creutzmann/Mambo Photo/Getty Images)

Speaking with Sunday People magazine, Chris Jagger, 71, said, “Mick is doing OK. I spoke to him – he’s good. It just showed up on a scan so it could happen to anybody, you know. ... With Mick it came on a check-up. I’ve had a few health issues. At least he has not got to wait in line for the NHS.”

After the successful surgery, Mick Jagger tweeted, “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.”

According to Dr. Marc Siegel, an NYU professor of medicine and Fox News medical correspondent, Jagger underwent a Transcatheter aortic Valve Replacment (TAVR). "The TAVR has become so successful and reliable usually with minimal side effects, that it is now taking the place of the more traditional and invasive surgery," said Siegel. "This is truly a miracle of modern medical science and a testament to our bioengineering capacities. It will save millions who would otherwise have died from failing heart valves or complications of the surgery."

(Twitter.)

"The average, unadjusted, total in-patient hospital cost for TAVR was $60,063 compared to $60,319 for SAVR [surgical aortic valve replacement]," reported Fox Business. "Medicaid and Medicare cover TAVR for the most severe patients. By comparison a heart bypass costs an average of $117,094, per the American Heart Association and can vary by state."

h/t Fox Business and Yahoo! News