 Complete the following phrase:  In 1979 the band decided to adopt the style of early rock n roll revivals, with English lyrics and tours of Western Europe. Their 1980 album in this style, Rock n Roll Party, was a major hit in Hungary, and the band adopted 1950s American rock n roll fashions for all public appearances, as did many of their fans. The 1981 album Hotel Menthol was another substantial hit. In 1982 the band played to 150,000 people at 