Glorimar Montalvo Castro (born February 14, 1979), also known as la Gata Gangster, is a Puerto Rican reggaeton singer.

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Glory has one of reggaeton's most recognized female voices. She has popularized phrases such as suelta como gabete ("loose as a shoestring", slang meaning "promiscuous") and dame más gasolina ("give me more gasoline"). During her career to date, she has collaborated in the productions of artists such as Daddy Yankee ("Gasolina"), Luny Tunes y Noriega (La Gata Suelta), Don Omar ("Dale Don Dale", La Traicionera, Suelta Como Gabete, La Loba), Héctor & Tito ("Baila morena"), Eddie Dee (Donde Hubo Fuego) and others. Listeners may recognize Glory by her distinctive moaning sounds in many reggaeton songs. She formed part of the famed "La Industria" or DJ Eric Industry. She collaborated on some of the early underground cassettes distributed among the Puerto Rican population, which include: Street Style 1, Street Style 2, and DJ Eric Industry Volumes 1-5.

Glory is known to audiences in Central and South America, Spain and the United States. One of her most recent hits^[when?] was "La Popola", which was even banned from some countries for its sexual content. In 2005, she released her debut CD Glou, which, according to the official website, sold over 100,000 copies in Latin America.^[1]

The singles "Perreo 101" and "La Traicionera" with Don Omar are two of her best-known hits. A new version of "La Popola" together with fellow-rapper Valentino (of the duo Magnate & Valentino) was also released, entitled "A Popolera".