British art world bad boy Damien Hirst, probably the world's most successful living artist, says he's getting sick of his own work. Hirst says the upcoming major auction of his work at Sotheby's in London later this month, which is expected to bring in about $120 million, will mark the end of some of his signature techniques, including ones that brought him fame and fortune in the first place. (Some cynics say the pieces aren't selling as well as they used to).

Except for a few pieces he's currently finishing up, Hirst says he will no longer be producing any of his famed formaldehyde works, such as the shark and cow series, nor will he continue with the spot and spin paintings he's so well known for. Explaining the change, Hirst credits his friend Joe Strummer, late frontman of The Clash: "It's like [Joe] once told me about writing songs," the artists says. "If you can guess what the rhyme's gonna be in the next line, then it's shit and you've gotta change it."