Feel like helping a worthy cause while enjoying performances from Alice Cooper, Brian May, Bruce Dickinson, John Paul Jones and others? Grab your wallet and get ready to rock.

These classic-rock heavyweights are just a few of the musicians who formed the extremely eclectic lineup featured on 'The Sunflower Superjam,' a new two-DVD set that commemorates two years of the long-running concert and auction event created to support the research and application of holistic and non-toxic treatments for children and young adults suffering from cancer.

'The Sunflower Superjam,' available now, collects footage from the 2011 and 2012 editions of the concert, which is held annually at the Royal Albert Hall in London. The events included performances by members of Deep Purple and Rick Wakeman of Yes, as well as Procol Harum's Gary Brooker, Mark King of Level 42 and others -- plus the final concert appearances of Deep Purple's Jon Lord, who passed away in 2012.

"We have managed to create something really special, something very different and raised much more awareness of integrated medicine than we would ever have imagined," enthused Sunflower Jam organizer Jacky Paice.