Pop chameleon David Bowie dead of cancer

By Paul Sandle and Guy Faulconbridge LONDON (Reuters) - David Bowie, the visionary British rock star who coupled hits such as "Space Oddity" with trend-setting pop personas like "Ziggy Stardust," has died at age 69, apparently of liver cancer, just two days after releasing what appears to be the parting gift of a new album. A pioneering chameleon of performance imagery, Bowie straddled the worlds of hedonistic rock, fashion, art and drama for five decades, pushing the boundaries of music and his