Any female celebrity, usually a well known singer or actress.
A person who may be considered or who considers herself (or by extension himself) much more important than others, has high expectations of others and who is extremely demanding and fussy when it comes to personal privileges.
A person who entertains others, esp. as a profession, as a singer, actor, presenter, dancer, musician, magician, comedian, etc.
Someone who puts on a show for the entertainment or enjoyment of others.