ideals and metal-influenced guitar sounds. However, hardcore punk and grunge developed in part as reactions against the heavy metal music that was popular during the 1980s. In punk's heyday, punks faced harassment and attacks from the general public and from members of other subcultures. In the 1980s in the UK, punks were sometimes involved in brawls with Teddy Boys, greasers, bikers, mods, and members of other subcultures. There was also considerable enmity between Positive punks (known today as goths) and the glamorously dressed New Romantics. In the late 1970s, punks were known to have had confrontations with hippies due to the contrasting ideologies and backlash of the hippie culture. Nevertheless, Penny Rimbaud of the English anarcho-punk band Crass said that Crass was formed in memory of his friend, the hippie Wally Hope. Rimbaud also said that Crass were heavily involved with the hippie movement throughout the 1960s and 1970s, with Dial House being established in 1967. Many punks were often critical of Crass for their involvement in the hippie movement. Like Crass, Jello Biafra was influenced by the hippie movement and cited the yippies as a key influence on his political activism and thinking, though he did write songs critical of hippies. The industrial and rivethead subcultures have had several ties to punk, in terms of music, fashion, and attitude. Power pop music (as defined by groups such as Badfinger, Cheap Trick, The Knack, and The Romantics) emerged in mostly the same time frame and geographical area as punk rock, and they shared a great deal musically in terms of playing short songs loud and fast while trying to emphasize catchy feelings. More melodic and pop-influenced punk music has also often been wrapped alongside power pop bands under the general "new wave music" label. A good example of a genre-straddling "power pop punk" band is the popular Northern Ireland group Protex. However, stylistically and lyrically, power pop bands have tended to have a very "not-punk" top 40 commercial pop music influence and a flashier, heavily teen-pop sense of fashion, especially modern power pop groups such as Stereo Skyline and All Time Low. Persecution East Germany The punk scene began to emerge in socialist East Germany in the late 1970’s. It shared many similarities with that of the West and was considered by the ruling authorities to be a spread of an international youth sub-culture which had its roots in the