David Nizam "Brownsound" Baksh (born July 26, 1980) is a Canadian musician, singer and producer best known as the co-lead guitarist of punk rock band Sum 41. He left Sum 41 for nine years beginning in 2006. In the interim he became a singer/guitarist in his own heavy metal/reggae project Brown Brigade. He also plays guitar for Organ Thieves, with two of his fellow Brown Brigade members and the Canadian death punk four-piece Black Cat Attack.