A painting by British pop icon David Bowie recently discovered at a Canadian store that resells donated goods had frantic bidders lining up Tuesday for a chance to own it. The computer and acrylic collage on canvas is part of the so-called D Head series of portraits of the Ziggy Stardust rocker himself, his friends and others that he painted between 1995 and 1997. It is signed on the back with his initials. Opening bids of more than Can$15,000 blew past Toronto auction house Cowley Abbot's estimated Can$9,000 to Can$12,000 valuation of the diminutive artwork. The online auction closes on June 24. "We were very excited to discover that the artwork was original and authentic," auctioneer Rob Cowley told AFP. "We are fans of David Bowie's work and it is very exciting to bring an artwork by him to the market." The 24 by 20-centimetre painting of a pale figure dressed in teal clothes, with teal and red hair on a crimson background, was originally sold through a website around 2001. It somehow found itself two decades later at a donations store in South River, Ontario – 300 kilometres north of Toronto. There, an anonymous buyer paid Can$5 for it. Bowie attended art school and was an...