Beyonce is laughing off an on-stage fall at Coachella over the weekend. She took a tumble during her set Saturday night while trying to pick up her sister, Solange, who fell while the two were singing together. They then laughed and continued performing. It was Beyonce's second headlining performance during the festival, which wrapped yesterday. During both, she treated the audience by bringing out Solange, along with Michelle Williams and Kelly Rowland from her girl group, Destiny's Child.