i believe the only music act from Hungary a bit known in other countries was the band Omega, and that was around the time when even Traci Lords was a little girl
who knows, but i doubt with this kind of music she could headline the Sziget Festival one day:
to be polite, this was not a big hit:
ps: Manic Street Preachers playing Sziget this year. The band had a single "Little Baby Nothing" with Traci Lords on backing vocals in 1992