World Leaders Arrive at G20 (20 images)

U.S. President Barack Obama (R) and First Lady Michelle Obama arrive to the welcoming dinner for G-20 leaders at the Phipps Conservatory on September 24, 2009 in Pittsburgh, Pennsylvania. Heads of state from the world's leading economic powers arrived today for the two-day G-20 summit, held at David L. Lawrence Convention Center, aimed at promoting economic growth. UPI/Win McNamee/Pool

French President Nicolas Sarkozy (R) arrives with his wife Carla Bruni Sarkozy to the welcoming dinner for G-20 leaders at the Phipps Conservatory on September 24, 2009 in Pittsburgh, Pennsylvania. Heads of state from the world's leading economic powers arrived today for the two-day G-20 summit held at the David L. Lawrence Convention Center aimed at promoting economic growth. UPI/Win McNamee/Pool

U.S. President Barack Obama (L) talks with French President Nicolas Sarkozy (2L) while Sarkozy's wife Carla Bruni Sarkozy (2R) talks with U.S. first lady Michelle Obama before the opening dinner for G-20 leaders at the Phipps Conservatory on September 24, 2009 in Pittsburgh, Pennsylvania. Heads of state from the world's leading economic powers arrived today for the two-day G-20 summit held at the David L. Lawrence Convention Center aimed at promoting economic growth. . UPI/Win McNamee/Pool

U.S. President Barack Obama (L) and First Lady Michelle Obama arrive to the welcoming dinner for G-20 leaders at the Phipps Conservatory on September 24, 2009 in Pittsburgh, Pennsylvania. Heads of state from the world's leading economic powers arrived today for the two-day G-20 summit, held at David L. Lawrence Convention Center, aimed at promoting economic growth. UPI/Win McNamee/Pool