Sheryl Crow has launched a sarcastic attack on the world's rehabbing celebrities by suggesting she needs to check into a treatment clinic to boost her career. The singer/songwriter, who has battled depression for years, joked about recording a duet with troubled British singer Amy Winehouse during a show at London's Scala venue on 19 February (08) - before poking fun at stars in rehab.Crow told fans, "I want to collaborate with Amy because she's really hot and cool right now. I know one song, Rehab, was very popular, particularly because a lot of young people are in rehab."In fact, I'm thinking about going. It looks like loads of fun and I know my career will benefit from it."Winehouse is currently undergoing counselling at a rehab clinic in London.


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