Rock 'n' roll veteran Jerry Lee Lewis has billionaire philanthropist Steve Bing to thank for his new lease of life after The Killer's famous superfan insisted on getting his hero the help he needed to overcome a bout of poor health.

Doctors prescribed heavy medication when Lewis' back pain started becoming a huge issue a decade ago, but they put the Great Ball of Fire hitmaker into a fug of depression and even his closest friends and bandmates feared the worst.

When Big learned his hero was struggling, he stepped in to make sure he got the best help available.

The businessman also helped the rocker sort out his financial problems and fixed his teeth.

Lewis' longtime drummer Jim Keltner tells Rolling Stone, "He helped get Jerry Lee in a situation where he wasn't being given hard meds for various ailments."

The health intervention has given the 79 year old a new outlook on life and he has started recording with his band again for the first time in years.

Keltner adds, "I remember doing an... interview with him and his eyes were just spinning. You weren't seeing the real Jerry Lee."