"I have no idea why they feel they can exploit the deaths of Tupac and my son Christopher ... the use of her husband's band, Black Sabbath, on the T-shirts. She wrote on Twitter: "Girls, you ...

Pictures of the pair have been superimposed over the likes of Tupac, Biggie, Pink Floyd and Metallica. But while some fans of these artists are upset, the T-shirts are still proving popular.