Successful dancers need to have excellent balance so they can move their bodies without falling or losing their sense of rhythm. They also need to be agile, flexible, coordinated, and musical. Artistic ability and creativity are common characteristics found in dancers, as they need to be creative in order to express ideas through movement. Professional dancers are often physically active for long periods, so they must be able to work for many hours without getting tired. Most dance routines involve a group setting, so working collaboratively with others is important in order to have routines come together successfully.