Biography
PH can refer to either:
1. Finnish heavy psych meta-rockers, formerly known as Mr. Peter Hayden
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2. An experimental Irish rock band of the '80s ("Last Days").
3. A hip-hop artist formerly known as Pumpkinhead, The Underground King, based in Brooklyn, New York.
4. A heavy metal band from Hungary.
5. Párovské Hlavy - a high-society punk band from Slovakia.
6. Turntablist Paul Hillery
7. A South African rapper and producer also known as pH Raw X.
Biography text from Last.fm, available under CC BY-SA.