US singer Donna Summer performs on stage during the Nobel Peace Prize Concert at the Oslo Spektrum, in Oslo, Norway, 11 December 2009. The concert honors this year's Nobel Peace Prize laureate, US President Barack Obama. EPA/BJORN SIGURDSON
The concert's host, US actor Will Smith shakes hands with members of the audience after the Nobel Peace Prize Concert at the Oslo Spektrum, in Oslo, Norway, 11 December 2009. The concert honored this year's Nobel Peace Prize laureate, US President Barack Obama. EPA/LISE ASERUD
US bassist and singer Esperanza Spalding performs on stage during the Nobel Peace Prize Concert at the Oslo Spektrum, in Oslo, Norway, 11 December 2009. The concert honors this year's Nobel Peace Prize laureate, US President Barack Obama. EPA/BJORN SIGURDSON
Puerto Rican singer Luis Fonsi performs on stage during the Nobel Peace Prize Concert at the Oslo Spektrum, in Oslo, Norway, 11 December 2009. The concert honors this year's Nobel Peace Prize laureate, US President Barack Obama. EPA/LISE ASERUD
Puerto Rican singer Luis Fonsi performs on stage during the Nobel Peace Prize Concert at the Oslo Spektrum, in Oslo, Norway, 11 December 2009. The concert honors this year's Nobel Peace Prize laureate, US President Barack Obama. EPA/LISE ASERUD
Members of Malian duo 'Amadou and Mariam', Amadou Bagayoko (R) and Mariam Doumbia (L) perform on stage during the Nobel Peace Prize Concert at the Oslo Spektrum, in Oslo, Norway, 11 December 2009. The concert honors this year's Nobel Peace Prize laureate, US President Barack Obama. EPA/LISE ASERUD
US musician Wyclef Jean, of the Fugees, performs on stage during the Nobel Peace Prize Concert at the Oslo Spektrum, in Oslo, Norway, 11 December 2009. The concert honors this year's Nobel Peace Prize laureate, US President Barack Obama. EPA/BJORN SIGURDSON
Chinese pianist Lang Lang performs on stage during the Nobel Peace Prize Concert at the Oslo Spektrum, in Oslo, Norway, 11 December 2009. The concert honors this year's Nobel Peace Prize laureate, US President Barack Obama. EPA/BJORN
US musician Wyclef Jean (R), of the Fugees, shakes hands with Crown Princess Mette-Marit (C) of Norway during the Nobel Peace Prize Concert at the Oslo Spektrum, in Oslo, Norway, 11 December 2009. The concert honors this year's Nobel Peace Prize laureate, US President Barack Obama. EPA/LISE
The concert's hosts, US actors Will Smith and Jada Pinkett Smith are flanked by their children Jaden (L) and Willow on stage during the Nobel Peace Prize Concert at the Oslo Spektrum, in Oslo, Norway, 11 December 2009. The concert honors this year's Nobel Peace Prize laureate, US President Barack Obama. EPA/LISE ASERUD
British singer Natasha Bedingfield performs on stage during the Nobel Peace Prize Concert at the Oslo Spektrum, in Oslo, Norway, 11 December 2009. The concert honors this year's Nobel Peace Prize laureate, US President Barack Obama. EPA/BJORN SIGURDSON
Norwegian Eurovision Song Contest winner Alexander Rybak performs on stage during the Nobel Peace Prize Concert at the Oslo Spektrum, in Oslo, Norway, 11 December 2009. The concert honors this year's Nobel Peace Prize laureate, US President Barack Obama. EPA/BJORN SIGURDSON
The concert's hosts, US actors Will Smith and Jada Pinkett Smith are flanked by their children Jaden (L) and Willow on stage during the Nobel Peace Prize Concert at the Oslo Spektrum, in Oslo, Norway, 11 December 2009. The concert honors this year's Nobel Peace Prize laureate, US President Barack Obama. EPA/BJORN SIGURDSON
Chinese pianist Lang Lang performs on stage during the Nobel Peace Prize Concert at the Oslo Spektrum, in Oslo, Norway, 11 December 2009. The concert honors this year's Nobel Peace Prize laureate, US President Barack Obama. EPA/BJORN SIGURDSON
President Barack Obama and his wife Michelle Obama wave to the crowd from the balcony of Grand Hotel in Oslo, where Obama received the Nobel Peace Prize, 10 December 2009. EPA/POPPE CORNELIUS
