Happy 91st Birthday, Mr. Nelson Mandela!

Artists organized a festive birthday celebration for the Nobel Peace Prize winner in Madison Square Garden today. Mandela was too weak to travel to New York but connected with everyone via satellite. Among those performing was Stevie Wonder, Aretha Franklin, Josh Groban, many artists from abroad and Carla Bruni-Sarkozy whose brother died of AIDS in 2006. Happy Birthday, Mr. Mandela!