The mravik x nona production was created by Katalin Andrási and László Mravik in 2001. The pop duo initially bore the name nona, in homage to the Roman goddness, who weaves the thread of life. Their album, called Credo, was released in 2003 by Universal. Even in this year, they were Santana's warmup band in the Kisstadion, and they appeared at every event that was provided by the opportunities of the time. (Morning TV shows, concerts organized by TV (Beach Siófok), as well as the fashionable road shows at the time) They also performed at the Sziget and the Volt festival. Their careers came to a halt when, from one moment to the next, unexpectedly, the entire management of the Hungarian division of the Universal publishing house was fired, as well as those artists and bands that the new management did not welcome in their "circles". Although Laci continued to work as a composer, he occasionally produced commercials, TV musical appearances, and music written on the basis of other orders, and Kata (nona) also sang on the musical materials of various creators, but the formation as a joint creator was put on hold for a long time. In 2018, when their own studio was completed, they decided to create their new musical material and share it with people, despite the twenty years they had missed. Regarding the name of the pop duo, however, since both music students and the media began to identify the singer of the pop duo with the name nona, the two founders decided to clearly "place" the name nona with Katá, while Laci will continue her career with her "last name". Their first song was released in January 2023 under the title "Falling Down", and on March 31st they launched "I have never been there", their musical work supplemented with visuals enticing to the land of desires.