groupie:
(plural: ‘groupies‘; pronunciation: the letter ‘g’ in this word rhymes with the letter ‘g’ in the word “garden”; the letters ‘ou’ rhyme with ‘oo’ in “pool”; and ‘pie’ rhyme with the word “pee” — ‘groo.pee’ — for the right pronunciaiton, please click here)

a groupie among the fans
a person (a fan), especially a young woman, who follows a pop music group (band) to the concerts it gives in admiration and also to meet and know them, or even, very few though, to have sex with any of the artists of the band;
a very strong supporter or follower of any activity,
(less commonly) a group captain (previous entry),

a groupie (R) with her celebrity
Young Nikki, my elder granddaughter, is an IJustin’s groupie; she goes to all the iJustin’s musical shows. (watch the video below)
My younger granddaughter, Sahi, on the other hand, is ‘a fashion groupie’ who visits, with her mother, of course, most of the fashion shows and fashion boutiques in and around London and visits reputed fashion malls when the whole family is on vacation in other countries!
The police have a tough time controlling groupies, especially the male groupies, when they are excited and rescuing them when they go missing, usually the teen female groupies.
Most corporate businessmen are golf groupies who are envied by their colleagues and friends and despised by their wives, the ‘golf widows’, who stay at home waiting for their husbands to come back to them.
