Kelly Rowland used to wish she was lighter skinned.The former Destiny's Child singer was convinced she would be more successful if her brown skin was fairer. Kelly told website "It's said that brown skinned girls don't sell magazines and that's so sad."I remember wishing I was more fair skinned, but Tina Knowles, Beyoncé's mom, would say, 'Don't you know how beautiful you are?' She made me come into my brown beauty. I didn't get it, but now I do."Thanks to Tina's advice, Kelly insists she was able to accept herself for who she really is and be proud of her heritage.The 26-year-old star said: "I am chocolate and beautiful and loving it!"Kelly recently revealed she only keeps fit to look good naked.The singer ignores the pressure to slim down and only stays in shape to impress when she is in the nude. Kelly said: "I would never become a size zero. I work out because I want to look good naked, simple as that."My least favourite part of my body is my butt, because it has stretchmarks."