Git Gay was born Birgit Agda Holmberg in 1921 in Karlshamn, Sweden. Her parents wanted her to become a concerto pianist and sent her to the Music Conservatory in Malmö. However, in the end of the 1940s, she was invited to act as a prima donna in a summer revue by director Sigge Holmberg. The following year, she performed at the Gröna Lund in Stockholm in the revue Klart Grönan. In 1949, she was hired by the entertainer Karl Gerhard to participate in the revue Där de stora torskarna går in Gothenburg.
In the 1950s, she performed with actor Åke Söderblom in Ge mig en lektion i kärlek, a show that was sold out for three seasons. Towards the end of the 1950s, she worked with actors such as Nils Poppe and Albert Gaubier at the Södran Theatre in Malmö, and with director Hagge Geigert at Uddevalla.
In 1960, Git Gay set up the Git Gay Show at Lorensberg Theatre in Gothenburg. The show is sometimes considered the first modern restaurant performance in Sweden. Git Gay took personal responsibility for directing, choreography, and designing the costumes. She even went to Las Vegas to get inspiration for the show. Altogether, Git Gay set up 20 different stage shows, with some performed at the legendary restaurant and entertainment venue Hamburger Börs in Stockholm. With some of the most notable Swedish actors of the time, the shows became quite successful.
In the beginning of the 1990s, she was a senior TV-presenter in a series of revues from Gothenburg. She died in Malmö in 2007, 11 days before her 86th birthday.
- Uno Myggan Ericsson, Myggans nöjeslexikon : ett uppslagsverk om underhållning, Höganäs : Bra Böcker, 1989-1993. ISBN 91-7752-274-5
- Git Gay har avlidit Sydsvenska Dagbladet, June 2, 2007.