[3][4] In 1983, Andrius Mamontovas began his musical quest by forming Foje, one of the most popular bands in Lithuania.

Among their many accomplishments, Foje toured European and American clubs, and at the last show held in Vilnius, with an audience of 60,000.

Mamontovas has also written soundtracks for several short films, and music for the theater play Ivanov by Anton Chekhov (directed by Nekrošius) at Teatro Argentina in Rome.

Mamontovas' performance was the main act at the festival by the Brandenburg Gate in Berlin on 1 May 2004, celebrating Lithuania's accession to the European Union.

Mamontovas initiated a LT United project, intended to represent Lithuania at the Eurovision Song Contest 2006.