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1.
a person or a group of singers who sings pop music
Backstreet and Britney Spears are popstars
by Reynaldo Ranada November 08, 2006
 
2.
German slang for a sex/porn star.
Derrieved from "poppen" which is slang for to fuck.
Das maedchen sieht wie ein popstar aus.
The girl looks like a porn star.
by Embem March 25, 2008
 
3.
A pop star is person who is widely recognized or famous in the music industry and who commands a moderate or high degree of public and media attention.
Mick Jagger, Elton John and Eminem are famous pop stars.
by Johny Boxer August 07, 2006