Tom Cruise and Oprah Winfrey will continue the tradition of bringing a superstar shine to dark December nights in Norway when the pair hosts the annual Nobel Peace Prize Concert. The Saturday concert, held to honor Kenyan environmentalist Wangari Maathai, will also feature musical artists such as Joss Stone, Andrea Bocelli, Diana Krall, Cyndi Lauper and Patti LaBelle. The 64-year-old Maathai, Kenya's deputy environment minister, was honored as founder of the Green Belt Movement, which has sought to empower women, improve the environment and fight corruption in Africa for almost 30 years. Winfrey said it was a "great pleasure" to...