Assuming you mean in a drama or comedy, a leading performer has traditionally been know as the lead, or Principal. A performer today is sometimes reffered to as the star of a performance, or as having a starring role.
Rubato is another term for tempo fluctuations in music, indicating a flexible interpretation by the performer.
A vedette is an actor or actress who is a leading star of screen, stage, or television. It is a term used to describe the main theatrical performer who knows how to dance, sing, and perform.
Leading is indicating the most important performer or role. Leading is the greatest in importance or degree or significance or achievement.
A Entertainor dumbo
creative...i guess..
Busker
The term is "racism." It refers to the belief that one race is superior or inferior to another, often leading to discrimination, prejudice, and power imbalances based on race.
Another term for a round of applause is "ovation." This is typically used to describe a loud and enthusiastic display of approval or appreciation from a group of people towards a performer or speaker.
actor, comedian, copycat, performer, imitator
Rubato
Another term for pyogenic arthritis is septic arthritis. This condition is characterized by the infection of a joint, usually caused by bacteria, leading to inflammation, pain, and swelling. Prompt medical intervention is crucial to prevent joint damage and complications.
Try performer, player, pianist, or piper.