Musician - block of stamps mint never hinged, Burundi

Khadja Nin was born in Burundi in 1959 and went to the Congo at the age of 16 to do an apprenticeship. There she met her future husband and opened a guest house with him for tourists. In 1980 left Khadja Nin took over the guest house with her husband and child and moved to Belgium. Her husband was murdered in Belgium and she had to keep her head above water doing odd jobs.

In 1985, Khadja Nin met music producer Nicols Fiszman and began to write songs in French, Swahili and Kirundi. Six years later, the record company BMG became aware of Khadja Nin and signed her. She is now married to the ex Formula 1 racing driver Jacky Ickx and is an ambassador for UNICEF.

Stevie Wonder was born in 1950 and is a blind American soul and pop singer. At the age of eleven he celebrated his first successes on the Motown label. Stevie Wonder was considered America's most successful entertainer in 1970. He became increasingly involved in politics and, in 1980, with a campaign for human rights, achieved that Martin Luther King's birthday has been a public holiday in the United States since 1986. Stevie Wonder has received multiple Grammy, Oscar and Golden Globe awards.