Well, they say all the money in music these days is in merchandising, and that seems to be true in the Osbourne camp.
Signature Networks, who manage the merchandising rights for the Osbournes, have revealed that the sales of Osbourne family merchandise sold at Ozzy gigs, including Ozzfest, have now topped $35 million, with an additional $15 million made in merchandise sales through retail outlets.
And that figure will no doubt continue to rise as the third series of the Osbournes show airs on MTV - especially given that an Ozzy vintage clothing range has just gone on sale in Bloomingdales and an Osbournes slot machine is in the pipeline.
Commenting on the success of recent Osbourne merchandise launches, Sharon Osbourne told reporters this week: "I think the 'Ozzy for President' and the 'Passion of Ozzy' shirts we just released will be some of the best-selling and most popular among his fans. Of course, I love Ozzy so much I sleep with one of his shirts on every night."