On the trail of the celebrity activist

"The biggest names are recruited by all major charities to put forward their cause. Some, like the singer Natalie Imbruglia, have chosen to champion the least picturesque causes. In her case, fistula in women in Africa.

"As she admits, faeces, incontinence and nasty smells are not popular causes. Others like Angelina Jolie are regularly pictured hugging children in refugee children in camps around the world, or in her case even adopting an orphan with AIDS in Ethiopia.

"But don't be fooled. Angelina knows what she is doing ..."
CNN