This is what we found on Wikipedia regarding the Christmas Under The Big Top:

The performing arts are arts such as music, dance, and drama which are performed for an audience. They are different from the visual arts, which involve the use of paint, canvas or various materials to create physical or static art objects. Performing arts include a range of disciplines which are performed in front of a live audience, including theatre, music, and dance.

Theatre, music, gymnastics, object manipulation, and other kinds of performances are present in all human cultures. The history of music and dance date to pre-historic times whereas circus skills date to at least Ancient Egypt. Many performing arts are performed professionally. Performance can be in purpose-built buildings, such as theatres and opera houses; on open air stages at festivals; on stages in tents, as in circuses; or on the street.

Live performances before an audience are a form of entertainment. The development of audio and video recording has allowed for private consumption of the performing arts. The performing arts often aim to express emotions or feelings.