Rihanna may be a self-proclaimed bad girl, but she was doing plenty of good in Chicago last night. The starlet gave a benefit concert for The Believe Foundation, which helps children and their families who can't afford the medical attention they need. Rihanna has a soft spot for both the charity and children in general, saying [1],

[1]

"When I was young and I would watch television and I would see all the children suffering, I always said when I grow up I want to help. Not long after I was in the position where I could help. I started to visit all these children's hospitals and I have a soft spot for kids. I just want to help and make sure they are happy. They can come to a Rihanna concert or have toys or gifts at Christmas."

After the show, Rih took her green nails [2] backstage to pose for pictures and sign autographs for her young fans. Sounds like these kids have found a great role model to look up to!

Source [3]