Omega was formed in Budapest in 1962 by Benkő and Kóbor, with trombonist Győző Bánkúti, drummer Tamás Künsztler, saxophonist Péter Láng, guitarist Ferenc Tornóczky, and bassist István Varsányi.

Later that year, the album was re-recorded in Hungarian and released in the band's home country as Trombitás Frédi és a Rettenetes Emberek (Trumpeter Freddy and the Terrible People).

[8] In 1971, Gábor Presser and drummer József Laux (who had joined in 1964) left Omega and formed the progressive rock band Locomotiv GT.

(Tamás Somló, who had played saxophone for Omega from 1964 to 1968, became bassist for Locomotiv GT in 1973,)[9] Presser was not replaced, while the band recruited new drummer Ferenc Debreczeni.

During the 1970s in particular, some of the band's albums were restricted or banned in Hungary due to the Communist regime's view that hard rock music was subversive.

[1] Omega regrouped in 1994 for a major concert at Népstadion in Budapest, with special appearances by former members Gábor Presser and Tamás Somló, plus Rudolf Schenker and Klaus Meine of the Scorpions.

[12] Following the collapse of Communism in Hungary, most of Omega's previously suppressed albums were released on CD and generated great interest in the band as it returned to performing in 1994.

[16] The band continued to tour regularly with a rotating cast of sidemen, and the album 55 - Volt Egyszer Egy Vadkelet was released in 2017.