Learn about the U2 frontman Bono's early years in Ireland and how he became an international multi Grammy-winning rockstar starting with the band's album 'The Joshua Tree.' Explore his philanthropy and why he wears his trademark sunglasses.

Discover the early life of Nelson Mandela and see what prompted him to join the African National Congress to fight apartheid. Learn about his 27 years of imprisonment and his work - and legacy - as the first black president of South Africa.