The Knowles sisters have won over the hearts of America with their strong-female voices! Both had their break-through into the music industry with the group Destiny's Child, with Solange sometimes singing with her older sisters group and dancing back-up! Beyoncé's best songs include "Single Ladies (Put a Ring on It)" and "Run the World (Girls)", while Solange is known for "Cranes in the Sky" and "Losing You".