There are at least 5 artists with the name Powder:
1) Britop, 1994-1997
Fronted by Pearl Lowe, with songwriters Mark Thomas on guitar and Tim McTighe on Bass. They released three singles, "20th Century Gods", "Afrodisiac" and "Deep Fried" in 1995, and toured in the UK. They released a retrospective album, MCMXCV in 1997 before breaking up.
2) Californian Turbo-Pop, 2001 onwards
Formed in 2001, they appear to be a two-piece made up of singer Ninette and Guitarist Phil X, they are still active as of July 2009. Read more on Last.fm