Street punk (sometimes alternatively spelled streetpunk) is an urban working class-based subgenre of punk rock, which partly emerged as a rebellion against the perceived artistic pretensions of the first wave of British punk. Street punk emerged from the style of Oi! and hardcore punk bands. A key band in defining the aesthetic was the Exploited. Street punks generally have a much more ostentatious and flamboyant appearance than the working class or skinhead image cultivated by many Oi! groups. Street punks commonly sported multi-coloured hair, mohawks, tattoos, heavily studded vests and leather jackets, and clothing, especially plaids, adorned with political slogans, patches, and/or the names of punk bands. In the 1990s and 2000s, a street punk revival began with emerging street punk bands such as the Casualties. Street punk music is characterized by single-note guitar lines and short solos. Unlike similar genres, such as traditional hardcore punk, street punk bands sometimes consisted of two guitarists, one of which plays guitar melodies while not singing. Street punk also makes frequent use of communal vocals, gang vocals, and sing–along choruses. Street punk lyrics commonly address topics such as fighting, drinking, partying, inner-city turmoil or personal relationships. Street punk bands sometimes express political viewpoints, typically of a left-wing variety, although some street punks eschew politics altogether in favor of a more hedonistic, nihilistic outlook. Street punk also had influences from New Wave of British Heavy Metal bands like Iron Maiden and Motörhead. Punk veteran Felix Havoc said: It was aggressive, yet had melody. As opposed to today's "melodic" punk it still had a lot of energy. It was honest. Hence the term "street punk." There is and was a feel that this was the kids music, from the streets, and was uncorrupted by "professionalism" or "musicianship." As opposed to the anarcho bands its message was more bleak and irreverent. The music was not a-political, just a less intellectual expression of political views of working class youth.