R+B superstar MARY J. BLIGE has hit out at reports troubled singer Amy Winehouse is a bad role model - insisting she sets the "perfect example". The Back to Black hitmaker was admitted to a London rehabilitation centre last week (25Jan08) in a bid to finally end her drug problems. Winehouse, 24, has come under fire for setting a bad example to her fans and glamorising cocaine use. But Blige, a former drug addict, believes Winehouse is receiving unfair criticism. She says, "Amy's music means something. If you look at the truth, leadership and honest in music, Amy is the perfect example. "She's probably the best thing in the business now. I hope I can collaborate with her."