Bruce Springsteen, Peter Gabriel, Sting and Tracy Chapman are some of the artists who will participate in a six-week concert series to mark the 40th anniversary of the Universal Declaration of Human Rights. Starting in London, the "Human Rights Now!" tour will cover more than 35,000 miles and is scheduled to play in 20 cities in Europe, Asia, Africa and the Americas. At each concert stop, the performers will be joined by a native artist in each country. "We hope to mobilize thousands of new activists for our human rights campaign," Amnesty International said. "This tour will generate a new force to save lives, stop torture and free prisoners of conscience worldwide." Confirmed concert dates are: London, Sept. 2; Paris, Sept. 4; Torino, Italy, Sept. 8; San Jose, Costa Rica, Sept. 13; Toronto, Sept. 16; Montreal, Sept. 17; Philadelphia, Sept. 19; Los Angeles, Sept. 21; Sao Paulo, Brazil, Oct. 12; Mendoza, Argentina, Oct. 14; and Buenos Aires, Oct. 15.