Sharon Osbourne has topped an unusual poll of the most important people in rock for her part in guiding the career of husband Ozzy and her family.
Sharon masterminded their reality TV show The Osbournes
Sharon Osbourne was the driving force behind reality TV show The Osbournes which earned the family $85m (£46m).
Satan occupied second place in the list, compiled by Kerrang! magazine, "because the devil has all the best tunes", it claimed.
Others on the list include Kurt Cobain and The Darkness' Justin Hawkins.
Controversial film-maker Michael Moore even makes an appearance, for "continuing to
inspire and inform rock's anti-authoritarian bands".
Top five 'important people in rock'
1. Sharon Osbourne
3. Brian Becker (Clear Channel Entertainment
4. Justin Hawkins
5. Rick Rubin (record producer)
Several people on the list would not be instantly familiar, including Brian Becker. Becker is the boss of Clear Channel Entertainment, the biggest owner of radio stations in the US.
Also included is Sanctuary Records founder Rod Smallwood, who was responsible for signing Iron Maiden, at number eight.
Kerrang! magazine said it had chosen Osbourne matriarch Sharon, who has recently undergone cancer treatment, because of her strong influence in steering the career of former Black Sabbath frontman Ozzy.
"Sharon is the real power behind the Prince of Darkness' throne," Kerrang!
She has also had to contend with two of her children, Kelly and Jack, needing to seek treatment for drug addictions, and Ozzy's near-fatal quad bike accident last December.
Rounding off the chart at number 10 was teenage singer Avril Lavigne "for turning a new generation of pop fans into fans of all things loud and objectionable".