Madonna performed before a sell-out crowd at Petco Park in San Diego on Tuesday night (November 4), where the singer was in a happy mood with news Barack Obama had just been elected the 44th U.S. President. “This is a historical evening,” Madge told the crowd. “This is a motherfu**ing important evening. And we are happy to be sharing it with each other.” Just before images of Obama came on the big screen, Madonna said, “This is the beginning of a whole new world.” Watch it via YouTube below.