Helm's southern-inflected singing-style carried the vocals on several tracks, including The Weight. Dylan joined them in Martin Scorsese's The Last Waltz, which documented the Band's last live performance together in 1976, alongside Eric Clapton, Neil Young, Joni Mitchell. The Band briefly reunited in the 1980s, and were inducted into the Rock and Roll Hall of Fame in 1994. They received a Lifetime Achievement Grammy in 2008. Latterly, Helm toured with Ringo Starr's All Starr Band in the 1980s and won multiple Grammy awards for his albums Dirt Farmer, Electric Dirt and Ramble at the Ryman, as well as one in 2011 for a live recording in Nashville, Tennessee. Elton John's 1971 song Levon was inspired by Helm - and the name Levon is among the names chosen for his baby son. "He passed away peacefully at 1:30 this afternoon surrounded by his friends and bandmates," longtime friend and guitarist Larry Campbell told Rolling Stone. "All his friends were there, and it seemed like Levon was waiting for them. Ten minutes after they left, we sat there and he just faded away. He did it with dignity."

So-called 'lunchtime boob jobs' were believed to be less invasive than other augmentation procedures.

Plastic surgeons in the UK have welcomed the decision to discontinue a treatment used in breast enhancements.

Macrolane, an injectable filler used for "lunchtime boob jobs", is to be withdrawn for such purposes this week.

A survey by the British Association of Aesthetic Plastic Surgeons (BAAPS) found that 25% of its members noticed patient complications from the filler.

Experts warn it could affect breast cancer screenings but manufacturer Q-Med said there was a lack of consensus.

The Medicines and Healthcare products Regulatory Agency (MHRA) said Macrolane could effect mammogram readings and make diagnosis more difficult.

A spokesman said there were no safety concerns with the product itself, and it could still be used for other purposes such as "augmenting body contour" and correcting soft tissue defects.

'Caution urged'

"If women have been injected with Macrolane and subsequently had a mammogram, they should contact their GP to see if they need to be referred for further screening," he added.

A "lunchtime boob job" enhances breast size by injecting filler such as Macrolane and does not require the use of implants.

It was believed to be much less invasive than other breast augmentation procedures.

In 2009, more than 1,000 women in the UK opted for this treatment, according to BAAPS figures.

BAAPS president Fazel Fatah said: "Any treatment can only be considered safe once it is known what long-term effect it has on cancer screening as this can affect such a high proportion of women.

"We have urged caution in the past against the use of fillers in the breast, especially when there is a lack of peer-reviewed results from controlled clinical trials."

Mr Fatah added that BAAPS had previously expressed concerns regarding lump formation and capsular contracture - the hardening of breast tissue around the implant - arising from the use of Macrolane.

A spokesman for Q-Med, which makes the product in Sweden, said all breast augmentation procedures, including those involving Macrolane, could interfere with mammograms.

"At present, there is a lack of consensus amongst radiologists regarding radiology examination of breasts treated with Macrolane," he said.

He said the decision to discontinue the product for breast enhancements followed consultation with regulatory authorities.

Earlier this year, silicone breast implants manufactured by French company Poly Implant Prothese (PIP) caused an international health scare when it was discovered that they have a high risk of rupturing in the body.