There are at least three P.S.D.s:

1)A rap artist from San Fransico, also known as PSD, is of the founding members of the Thizz Nation and before that, a member of Mac Dre's group The Cutthoat Committee.

2)Finnish moshcore group from Pudasjärvi. Band was formed by Vesa Ruokokangas in 1987, he had just left National Napalm Syndicate. Band name comes from words Psychopathic Self-Destroyer. Band has published only one recording and it is rehearsal tape called "Two Months before Chrismas". On the tape are 10 songs and total running time is approximately 9 mins.
Band's last known line-up was:
Vesa - Vocals
Jukka - Guitar
Juhani - Bass
Petri - Drums

3) Croatian punk band from Karlovac, also known as Prije svega disciplina. Formed in 1980's, they re-united in 2007.

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