John Travolta's First Hit   John Travolta first gained fame as Vinnie Barbarino on the television series Welcome Back, Kotter (1975).
popular adjective (LIKED) A2 liked, enjoyed, or supported by many people: She's the most popular teacher in school. That song was popular with people from my father's generation. Walking is a popular form of exercise in Britain.
Definition of pop. 1 : popular pop music: such asa : of or relating to popular music pop singerb : of or relating to the popular culture disseminated through the mass media pop psychology pop grammarians pop society.