Performer (noun)

1. A person who entertains an audience by singing, acting, playing a musical instrument, or performing a variety of other acts.
2. A person who performs a particular task or function.
3. An individual or group who carries out an action.

Origin:

Late middle english: from old french parfournisseur, from parfournir "perform completely", from par- "completely" + fournir "provide".

Examples:

1. He was a gifted performer.
2. She was a talented performer.
3. The performers were on stage.
4. The performer sang a song.
5. The performer danced a solo.